Climatological Report (Annual)
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000
CXUS55 KBYZ 011543
CLALVM


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
832 AM MST FRI JAN 1 2016

...................................

...THE LIVINGSTON MT CLIMATE SUMMARY FOR THE YEAR OF 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             105   08/05/1961
 LOW              -41   12/24/1983
HIGHEST            99   06/29
LOWEST            -13   02/22
AVG. MAXIMUM     61.3              58.1     3.2
AVG. MINIMUM     35.3              31.5     3.8
MEAN             48.3              44.8     3.5
DAYS MAX >= 90     31                      12.6
DAYS MAX <= 32     30                      -5.1
DAYS MIN <= 32    141                     -31.8
DAYS MIN <= 0       9                      -6.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        15.46   2014
 MINIMUM         8.62   2012
TOTALS          15.05             14.81    0.24
DAYS >= .01       118                      14.7
DAYS >= .10        43                       1.0
DAYS >= .50         4                      -2.2
DAYS >= 1.00        1                      -0.1

DEGREE_DAYS
HEATING TOTAL    6364              7603   -1239
COOLING TOTAL     393               229     164

FREEZE DATES
RECORD
 EARLIEST     08/17/2002
 LATEST       06/29/1968
EARLIEST                        09/13
LATEST                          05/28
.................................................

WIND (MPH)
AVERAGE WIND SPEED              14.0
HIGHEST WIND SPEED/DIRECTION    62/220    DATE  12/08
HIGHEST GUST SPEED/DIRECTION    79/210    DATE  11/17


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               14     RAIN                      31
LIGHT RAIN              108     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                6     SNOW                      17
LIGHT SNOW               68     SLEET                      0
FOG                      84     FOG W/VIS <= 1/4 MILE      7
HAZE                     33

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.


&&

...2015 YEAR IN REVIEW FOR LIVINGSTON...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR LIVINGSTON FOR 2015. ALL TEMPERATURES ARE IN DEGREES
FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1981 TO 2010. MONTHLY AND ANNUAL
RANKINGS FOR PRECIPITATION...SNOWFALL...AND TEMPERATURES USE A PERIOD
OF RECORD THAT STARTED IN JULY 1948 AT OR NEAR THE LIVINGSTON AIRPORT.

NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.

... MONTHLY PRECIPITATION...

 MONTH   2015 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      0.54     0.49       +0.05      27TH WETTEST OUT OF 67 YEARS
                                            (RECORD WETTEST WAS 2.41 IN 1989)
                                            (WETTEST SINCE 1.41 IN 2003)

FEBRUARY     0.65     0.50       +0.15      15TH WETTEST OUT OF 67 YEARS
                                            (RECORD WETTEST WAS 1.76 IN 1986)
                                            (WETTEST SINCE 0.69 IN 2014)

MARCH        0.27     0.84       -0.57      4TH DRIEST OUT OF 67 YEARS
                                            (RECORD DRIEST WAS 0.13 IN 2002)
                                            (DRIEST SINCE 0.22 IN 2013)

APRIL        1.23     1.77       -0.54      24TH DRIEST OUT OF 67 YEARS
                                            (RECORD DRIEST WAS 0.23 IN 1980)
                                            (DRIEST SINCE 0.45 IN 2013)

MAY          4.08     2.66       +1.42      10TH WETTEST OUT OF 67 YEARS
                                            (RECORD WETTEST WAS 6.48 IN 1981)
                                            (WETTEST SINCE 5.19 IN 2011)

JUNE         0.92     2.39       -1.47      4TH DRIEST OUT OF 67 YEARS
                                            (RECORD DRIEST WAS 0.54 IN 1974)
                                            (DRIEST SINCE 0.71 IN 1991)

JULY         1.17     1.47       -0.30      32ND WETTEST OUT OF 68 YEARS
                                            (RECORD WETTEST WAS 4.39 IN 1993)
                                            (WETTEST SINCE 1.29 IN 2013)

AUGUST       1.25     1.11       +0.14      30TH WETTEST OUT OF 68 YEARS
                                            (RECORD WETTEST WAS 3.90 IN 1979)
                                            (WETTEST SINCE 2.69 IN 2014)

SEPTEMBER    1.24     1.21       +0.03      33RD DRIEST OUT OF 68 YEARS
                                            (RECORD DRIEST WAS 0.04 IN 1964)
                                            (DRIEST SINCE 0.10 IN 2012)

OCTOBER      1.70     1.26       +0.44      17TH WETTEST OUT OF 68 YEARS
                                            (RECORD WETTEST WAS 3.47 IN 1975)
                                            (WETTEST SINCE 2.14 IN 2007)

NOVEMBER     1.03     0.59       +0.44      14TH WETTEST OUT OF 68 YEARS
                                            (RECORD WETTEST WAS 2.40 IN 1973)
                                            (WETTEST SINCE 1.09 IN 2014)

DECEMBER     0.97     0.52       +0.45      5TH WETTEST OUT OF 68 YEARS
                                            (RECORD WETTEST WAS 2.01 IN 1955)
                                            (WETTEST SINCE 1.07 IN 2003)

YEAR        15.05    14.81       +0.24      31ST WETTEST OUT OF 68 YEARS
                                            (RECORD WETTEST WAS 22.87 IN 1975)
                                            (WETTEST SINCE 15.46 IN 2014)

... 2015 TOP 3 DAILY MAXIMUM PRECIPITATION...

1 - 1.32   MAY 16
2 - 0.58   JUNE 29
3 - 0.57   MAY 28

ALL TIME DAILY PRECIPITATION RECORD...2.90 ON JUNE 16 1992

... 2015 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

0.27 ON FEBRUARY 15 (OLD RECORD 0.19 IN 1986)
1.32 ON MAY 16 (OLD RECORD 0.74 IN 1977)
0.41 ON SEPTEMBER 16 (TIED RECORD IN 1996)
0.46 ON OCTOBER 19 (OLD RECORD 0.41 IN 2001)
0.36 ON NOVEMBER  3 (OLD RECORD 0.26 IN 1968)
0.44 ON DECEMBER 14 (OLD RECORD 0.09 IN 1988)
0.28 ON DECEMBER 19 (OLD RECORD 0.22 IN 1983)

NOTE: SINCE THE LATE 1990S...LIVINGSTON BECAME AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.

... AVERAGE TEMPERATURES...

 MONTH   2015 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      32.6      27.0      +5.6      11TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 37.5 IN 1986)
                                           (WARMEST SINCE 32.9 IN 2014)

FEBRUARY     35.0      29.1      +5.9      11TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 40.9 IN 1991)
                                           (WARMEST SINCE 37.3 IN 1999)

MARCH        45.2      35.6      +9.6      RECORD WARMEST OUT OF 67 YEARS
                                           (OLD RECORD WARMEST WAS 44.5 IN 1986)

APRIL        44.0      42.1      +1.9      24TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 51.7 IN 1987)
                                           (WARMEST SINCE 44.6 IN 2014)

MAY          50.4      50.6      -0.2      TIED FOR THE 22ND COLDEST OUT OF 67 YEARS
                                           (RECORD COLDEST WAS 46.3 IN 1959)
                                           (COLDEST SINCE 49.9 IN 2012)

JUNE         66.3      58.7      +7.6      TIED FOR THE 2ND WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 68.4 IN 1988)
                                           (WARMEST SINCE 68.4 IN 1988)

JULY         68.1      66.9      +1.2      TIED FOR THE 33RD WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 74.0 IN 2007)
                                           (WARMEST SINCE 70.0 IN 2014)

AUGUST       67.0      65.6      +1.4      31ST WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 71.6 IN 2000)
                                           (WARMEST SINCE 71.3 IN 2013)

SEPTEMBER    60.8      55.8      +5.0      11TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 64.2 IN 1998)
                                           (WARMEST SINCE 60.9 IN 2013)

OCTOBER      50.6      45.1      +5.5      TIED FOR THE 10TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 52.6 IN 1988)
                                           (WARMEST SINCE 51.7 IN 2014)

NOVEMBER     31.4      34.0      -2.6      TIED FOR THE 14TH COLDEST OUT OF 68 YEARS
                                           (RECORD COLDEST WAS 18.3 IN 1985)
                                           (COLDEST SINCE 30.8 IN 2014)

DECEMBER     28.3      26.1      +2.2      TIED FOR THE 31ST COLDEST OUT OF 68 YEARS
                                           (RECORD COLDEST WAS 12.2 IN 1983)
                                           (COLDEST SINCE 24.5 IN 2013)

YEAR         48.4      44.8      +3.6      4TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 49.6 IN 1999)
                                           (WARMEST SINCE 49.6 IN 1999)

... AVERAGE HIGH TEMPERATURES...

 MONTH   2015 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      43.7      36.9      +6.8      5TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 48.2 IN 1981)
                                           (WARMEST SINCE 46.1 IN 1986)

FEBRUARY     45.1      39.8      +5.3      TIED FOR THE 10TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 51.2 IN 1991)
                                           (WARMEST SINCE 45.5 IN 2005)

MARCH        58.2      47.5     +10.7      RECORD WARMEST OUT OF 67 YEARS
                                           (OLD RECORD WARMEST WAS 56.2 IN 1986)

APRIL        57.6      55.0      +2.6      TIED FOR THE 20TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 69.0 IN 1987)
                                           (WARMEST SINCE 57.6 IN 2014)

MAY          61.0      64.6      -3.6      14TH COLDEST OUT OF 67 YEARS
                                           (RECORD COLDEST WAS 57.7 IN 1975)
                                           (COLDEST SINCE 58.9 IN 2011)

JUNE         82.6      73.4      +9.2      3RD WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 85.6 IN 1988)
                                           (WARMEST SINCE 85.6 IN 1988)

JULY         84.1      84.6      -0.5      ON THE MEDIAN OUT OF 68 YEARS
                                           (WARMEST 93.2-2007/COLDEST 70.0-1993)

AUGUST       85.1      84.0      +1.1      23RD WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 91.0 IN 2000)
                                           (WARMEST SINCE 90.0 IN 2013)

SEPTEMBER    78.0      72.1      +5.9      9TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 81.6 IN 1998)
                                           (WARMEST SINCE 80.7 IN 2012)

OCTOBER      63.9      58.5      +5.4      TIED FOR THE 12TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 68.0 IN 1999)
                                           (WARMEST SINCE 66.4 IN 2014)

NOVEMBER     40.1      44.0      -3.9      15TH COLDEST OUT OF 68 YEARS
                                           (RECORD COLDEST WAS 26.4 IN 1985)
                                           (COLDEST SINCE 39.8 IN 2010)

DECEMBER     35.9      35.5      +0.4      TIED FOR THE 28TH COLDEST OUT OF 68 YEARS
                                           (RECORD COLDEST WAS 21.4 IN 1983)
                                           (COLDEST SINCE 32.7 IN 2013)

YEAR         61.4      58.1      +3.3      TIED FOR THE 6TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 63.2 IN 1999)
                                           (WARMEST SINCE 62.3 IN 2012)

... 2015 TOP 3 WARMEST DAILY HIGH TEMPERATURES...

1 - 99   JUNE 29
2 - 98   JUNE 28
3 - 96   AUGUST  1

ALL TIME RECORD WARMEST DAILY HIGH TEMPERATURE...105 ON AUGUST  5 1961

... 2015 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

53 ON JANUARY 18 (OLD RECORD 52 IN 2009)
59 ON JANUARY 25 (TIED RECORD IN 2006)
65 ON JANUARY 26 (OLD RECORD 56 IN 2013)
64 ON JANUARY 27 (OLD RECORD 57 IN 1986)
65 ON FEBRUARY  6 (OLD RECORD 61 IN 1963)
63 ON FEBRUARY 13 (TIED RECORD IN 1996)
64 ON FEBRUARY 14 (OLD RECORD 59 IN 1996)
57 ON FEBRUARY 18 (OLD RECORD 56 IN 1965)
70 ON MARCH 21 (OLD RECORD 68 IN 1960)
74 ON MARCH 27 (OLD RECORD 72 IN 1986)
93 ON JUNE  9 (TIED RECORD IN 1996)
96 ON JUNE 27 (OLD RECORD 93 IN 1958)
98 ON JUNE 28 (OLD RECORD 94 IN 1961)
99 ON JUNE 29 (OLD RECORD 98 IN 2007)
92 ON SEPTEMBER 13 (TIED RECORD IN 1948)
93 ON SEPTEMBER 25 (OLD RECORD 91 IN 2001)
82 ON OCTOBER  9 (TIED RECORD IN 1953)

... 2015 TOP 3 COLDEST DAILY HIGH TEMPERATURES...

1 - 5   JANUARY  4
2 - 15   FEBRUARY 26
3 - 17   NOVEMBER 27

ALL TIME RECORD COLDEST DAILY HIGH TEMPERATURE...-26 ON FEBRUARY  3 1989

... 2015 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

64 ON AUGUST  8 (TIED RECORD IN 1974)

... AVERAGE LOW TEMPERATURES...

 MONTH   2015 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      21.5      17.2      +4.3      22ND WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 28.8 IN 1986)
                                           (WARMEST SINCE 23.9 IN 2014)

FEBRUARY     24.8      18.3      +6.5      TIED FOR THE 13TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 30.6 IN 1991)
                                           (WARMEST SINCE 27.9 IN 1999)

MARCH        32.1      23.7      +8.4      2ND WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 32.7 IN 1986)
                                           (WARMEST SINCE 32.7 IN 1986)

APRIL        30.4      29.1      +1.3      TIED FOR THE 31ST COLDEST OUT OF 67 YEARS
                                           (RECORD COLDEST WAS 25.4 IN 1975)
                                           (COLDEST SINCE 26.8 IN 2013)

MAY          39.8      36.6      +3.2      TIED FOR THE 19TH WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 45.1 IN 1958)
                                           (WARMEST SINCE 40.3 IN 2013)

JUNE         49.9      44.0      +5.9      2ND WARMEST OUT OF 67 YEARS
                                           (RECORD WARMEST WAS 51.1 IN 1988)
                                           (WARMEST SINCE 51.1 IN 1988)

JULY         52.0      49.2      +2.8      TIED FOR THE 25TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 55.6 IN 1975)
                                           (WARMEST SINCE 52.1 IN 2013)

AUGUST       48.9      47.2      +1.7      TIED FOR THE 28TH COLDEST OUT OF 68 YEARS
                                           (RECORD COLDEST WAS 43.4 IN 2002)
                                           (COLDEST SINCE 48.3 IN 2012)

SEPTEMBER    43.6      39.4      +4.2      16TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 47.3 IN 1963)
                                           (WARMEST SINCE 46.7 IN 2013)

OCTOBER      37.3      31.6      +5.7      8TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 38.8 IN 1953)
                                           (WARMEST SINCE 38.2 IN 1988)

NOVEMBER     22.7      23.9      -1.2      14TH COLDEST OUT OF 68 YEARS
                                           (RECORD COLDEST WAS 10.1 IN 1985)
                                           (COLDEST SINCE 20.4 IN 2014)

DECEMBER     20.6      16.7      +3.9      34TH COLDEST OUT OF 68 YEARS
                                           (RECORD COLDEST WAS 2.9 IN 1983)
                                           (COLDEST SINCE 16.3 IN 2013)

YEAR         35.4      31.5      +3.9      4TH WARMEST OUT OF 68 YEARS
                                           (RECORD WARMEST WAS 35.9 IN 1999)
                                           (WARMEST SINCE 35.9 IN 1999)

... 2015 TOP 3 WARMEST DAILY LOW TEMPERATURES...

1 - 64   OCTOBER 10
2 - 62   JUNE  9
3 - 61   JULY 25

ALL TIME RECORD WARMEST DAILY LOW TEMPERATURE...73 ON AUGUST 10 2000

... 2015 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

44 ON JANUARY 25 (OLD RECORD 42 IN 1984)
45 ON JANUARY 26 (OLD RECORD 42 IN 1971)
42 ON FEBRUARY  5 (TIED RECORD IN 1963)
52 ON FEBRUARY  6 (OLD RECORD 41 IN 1963)
49 ON FEBRUARY  7 (OLD RECORD 45 IN 1996)
45 ON FEBRUARY 12 (OLD RECORD 41 IN 1991)
47 ON FEBRUARY 13 (OLD RECORD 40 IN 1979)
49 ON MARCH 11 (OLD RECORD 46 IN 1982)
57 ON MARCH 15 (OLD RECORD 42 IN 2003)
62 ON JUNE  9 (OLD RECORD 57 IN 1956)
58 ON JUNE 28 (OLD RECORD 55 IN 1970)
59 ON AUGUST 14 (TIED RECORD IN 1991)
55 ON SEPTEMBER 20 (OLD RECORD 52 IN 1991)
53 ON SEPTEMBER 21 (TIED RECORD IN 1958)
64 ON OCTOBER 10 (OLD RECORD 55 IN 1989)
44 ON DECEMBER  8 (OLD RECORD 41 IN 1984)

... 2015 TOP 3 COLDEST DAILY LOW TEMPERATURES...

1 - -13   FEBRUARY 22
2 - -10   NOVEMBER 26
3 - -9   NOVEMBER 28

ALL TIME RECORD COLDEST DAILY LOW TEMPERATURE...-41 ON DECEMBER 24 1983

... 2015 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

-13 ON FEBRUARY 22 (OLD RECORD -10 IN 1957)
20 ON MAY 10 (OLD RECORD 26 IN 1967)
34 ON AUGUST 22 (OLD RECORD 37 IN 1996)
30 ON AUGUST 23 (OLD RECORD 35 IN 2007)

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