Climatological Report (Annual)
Issued by NWS Billings, MT

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000
CXUS55 KBYZ 011912
CLASHR

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1210 PM MST FRI JAN 01 2021

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

...THE SHERIDAN WY CLIMATE SUMMARY FOR THE YEAR OF 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1907 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            107   07/13/2005
                       07/14/2002
 LOW             -41   12/09/1919
HIGHEST          103   07/12
                       07/22
                       09/05
LOWEST           -10   10/26
AVG. MAXIMUM    62.3               59.5     2.8
AVG. MINIMUM    31.6               30.9     0.7
MEAN            46.9               45.2     1.7
DAYS MAX >= 90    54                       23.9
DAYS MAX <= 32    31                       -7.6
DAYS MIN <= 32   194                        8.9
DAYS MIN <= 0     14                       -5.9

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       24.77   1944
 MINIMUM        8.23   1960
TOTALS         10.82              14.16   -3.34
DAYS >= .01       97                       -3.8
DAYS >= .10       31                       -8.5
DAYS >= .50        3                       -3.2
DAYS >= 1.00       1                       -0.2


DEGREE DAYS
HEATING TOTAL   7095               7644    -549
COOLING TOTAL    612                420     192

FREEZE DATES
RECORD
 EARLIEST     08/17/2002
 LATEST       06/24/1967
EARLIEST                        09/08
LATEST                          05/10
................................................

WIND (MPH)
AVERAGE WIND SPEED              7.0
RESULTANT WIND SPEED/DIRECTION   3/300
HIGHEST WIND SPEED/DIRECTION    51/320    DATE  03/03
HIGHEST GUST SPEED/DIRECTION    65/280    DATE  12/20


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             30     MIXED PRECIP               1
HEAVY RAIN                7     RAIN                      22
LIGHT RAIN               81     FREEZING RAIN              1
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW               11     SNOW                      26
LIGHT SNOW               70     SLEET                      0
FOG                      87     FOG W/VIS <= 1/4 MILE     15
HAZE                     55

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

&&

...2020 YEAR IN REVIEW FOR SHERIDAN...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR SHERIDAN FOR 2020. 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 AND TEMPERATURES USE A PERIOD
OF RECORD THAT STARTED IN MAY 1907 AT OR NEAR THE SHERIDAN AIRPORT.

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

...SHERIDAN MONTHLY PRECIPITATION...

 MONTH   2020 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      0.38     0.56       -0.18      TIED FOR THE 34TH DRIEST OUT OF 113 YEARS
                                            (RECORD DRIEST WAS 0.03 IN 2004)
                                            (DRIEST SINCE 0.35 IN 2012)

FEBRUARY     1.38     0.54       +0.84      8TH WETTEST OUT OF 113 YEARS
                                            (RECORD WETTEST WAS 2.68 IN 1955)
                                            (WETTEST SINCE 1.53 IN 2018)

MARCH        0.55     0.98       -0.43      TIED FOR THE 21ST DRIEST OUT OF 113 YEARS
                                            (RECORD DRIEST WAS 0.14 IN 1978)
                                            (DRIEST SINCE 0.44 IN 2019)

APRIL        1.14     1.60       -0.46      27TH DRIEST OUT OF 113 YEARS
                                            (RECORD DRIEST WAS 0.18 IN 1980)
                                            (DRIEST SINCE 1.12 IN 2008)

MAY          0.74     2.35       -1.61      11TH DRIEST OUT OF 114 YEARS
                                            (RECORD DRIEST WAS 0.15 IN 1936)
                                            (DRIEST SINCE 0.22 IN 2009)

JUNE         1.73     2.12       -0.39      TIED FOR THE 48TH DRIEST OUT OF 114 YEARS
                                            (RECORD DRIEST WAS 0.07 IN 1933)
                                            (DRIEST SINCE 1.35 IN 2019)

JULY         0.06     1.18       -1.12      2ND DRIEST OUT OF 114 YEARS
                                            (RECORD DRIEST WAS 0.02 IN 1999)
                                            (DRIEST SINCE 0.02 IN 1999)

AUGUST       0.53     0.72       -0.19      47TH DRIEST OUT OF 114 YEARS
                                            (RECORD DRIEST WAS T TIED IN 1970)
                                            (DRIEST SINCE 0.43 IN 2017)

SEPTEMBER    1.37     1.43       -0.06      53RD WETTEST OUT OF 114 YEARS
                                            (RECORD WETTEST WAS 8.18 IN 1923)
                                            (WETTEST SINCE 1.88 IN 2019)

OCTOBER      2.62     1.41       +1.21      12TH WETTEST OUT OF 114 YEARS
                                            (RECORD WETTEST WAS 3.72 IN 2011)
                                            (WETTEST SINCE 3.72 IN 2011)

NOVEMBER     0.04     0.71       -0.67      2ND DRIEST OUT OF 114 YEARS
                                            (RECORD DRIEST WAS T IN 1939)
                                            (DRIEST SINCE T IN 1939)

DECEMBER     0.28     0.56       -0.28      28TH DRIEST OUT OF 114 YEARS
                                            (RECORD DRIEST WAS 0.03 IN 1930)
                                            (DRIEST SINCE 0.21 IN 2019)

YEAR        10.82    14.16       -3.34      11TH DRIEST OUT OF 113 YEARS
                                            (RECORD DRIEST WAS 8.23 IN 1960)
                                            (DRIEST SINCE 9.53 IN 2012)

...SHERIDAN 2020 TOP 3 DAILY MAXIMUM PRECIPITATION...

1 - 1.06   SEPTEMBER  7
2 - 0.84   OCTOBER 17
3 - 0.63   JUNE 30

ALL TIME DAILY PRECIPITATION RECORD...3.32 ON JUNE  3 1944

...SHERIDAN 2020 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

0.45 ON FEBRUARY  2 (OLD RECORD 0.40 IN 1912)
0.63 ON JUNE 30 (OLD RECORD 0.29 IN 1908)
1.06 ON SEPTEMBER  7 (OLD RECORD 0.98 IN 2001)

...SHERIDAN AVERAGE TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      28.1      23.8      +4.3      17TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 35.5 IN 2006)
                                           (WARMEST SINCE 28.2 IN 2012)

FEBRUARY     24.7      26.6      -1.9      TIED FOR THE 54TH COLDEST OUT OF 113 YEARS
                                           (RECORD COLDEST WAS 3.8 IN 1936)
                                           (COLDEST SINCE 12.0 IN 2019)

MARCH        36.4      35.2      +1.2      35TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 45.5 IN 2012)
                                           (WARMEST SINCE 41.0 IN 2017)

APRIL        39.7      43.6      -3.9      13TH COLDEST OUT OF 113 YEARS
                                           (RECORD COLDEST WAS 36.4 IN 1920)
                                           (COLDEST SINCE 37.7 IN 2013)

MAY          53.0      52.5      +0.5      TIED FOR THE 53RD WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 61.4 IN 1934)
                                           (WARMEST SINCE 57.5 IN 2018)

JUNE         64.8      61.6      +3.2      TIED FOR THE 21ST WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 74.2 IN 1988)
                                           (WARMEST SINCE 68.3 IN 2016)

JULY         72.1      70.0      +2.1      TIED FOR THE 32ND WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 77.9 IN 1936)
                                           (WARMEST SINCE 74.2 IN 2017)

AUGUST       72.1      69.0      +3.1      13TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 77.8 IN 1983)
                                           (WARMEST SINCE 72.3 IN 2013)

SEPTEMBER    61.0      57.9      +3.1      TIED FOR THE 17TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 65.3 IN 1963)
                                           (WARMEST SINCE 64.1 IN 2015)

OCTOBER      41.4      45.5      -4.1      TIED FOR THE 14TH COLDEST OUT OF 114 YEARS
                                           (RECORD COLDEST WAS 34.1 IN 1925)
                                           (COLDEST SINCE 37.0 IN 2019)

NOVEMBER     38.1      32.7      +5.4      TIED FOR THE 14TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 45.4 IN 1949)
                                           (WARMEST SINCE 39.8 IN 2016)

DECEMBER     32.1      22.9      +9.2      3RD WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 35.0 IN 1957)
                                           (WARMEST SINCE 35.0 IN 1957)

YEAR         47.1      45.2      +1.9      12TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 48.8 IN 1934)
                                           (WARMEST SINCE 48.0 IN 2016)

...SHERIDAN AVERAGE HIGH TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      39.9      36.2      +3.7      18TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 48.8 IN 2006)
                                           (WARMEST SINCE 41.5 IN 2012)

FEBRUARY     37.3      39.0      -1.7      TIED FOR THE 56TH COLDEST OUT OF 113 YEARS
                                           (RECORD COLDEST WAS 16.2 IN 1936)
                                           (COLDEST SINCE 23.3 IN 2019)

MARCH        48.5      48.4      +0.1      TIED FOR THE 39TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 61.8 IN 2012)
                                           (WARMEST SINCE 53.1 IN 2017)

APRIL        55.1      57.4      -2.3      40TH COLDEST OUT OF 113 YEARS
                                           (RECORD COLDEST WAS 46.0 IN 1920)
                                           (COLDEST SINCE 50.7 IN 2013)

MAY          67.0      66.7      +0.3      TIED FOR THE 44TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 78.7 IN 1934)
                                           (WARMEST SINCE 70.5 IN 2018)

JUNE         80.7      76.7      +4.0      TIED FOR THE 17TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 91.2 IN 1988)
                                           (WARMEST SINCE 87.0 IN 2016)

JULY         91.0      87.1      +3.9      TIED FOR THE 13TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 95.8 IN 1936)
                                           (WARMEST SINCE 93.2 IN 2017)

AUGUST       91.1      86.3      +4.8      6TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 95.0 IN 1983)
                                           (WARMEST SINCE 91.5 IN 2003)

SEPTEMBER    79.5      74.2      +5.3      13TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 83.1 IN 2015)
                                           (WARMEST SINCE 83.1 IN 2015)

OCTOBER      56.6      60.1      -3.5      TIED FOR THE 24TH COLDEST OUT OF 114 YEARS
                                           (RECORD COLDEST WAS 44.9 IN 1925)
                                           (COLDEST SINCE 51.5 IN 2019)

NOVEMBER     55.0      45.9      +9.1      7TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 59.9 IN 1949)
                                           (WARMEST SINCE 58.6 IN 1999)

DECEMBER     45.7      35.2     +10.5      4TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 48.5 IN 1957)
                                           (WARMEST SINCE 46.8 IN 1979)

YEAR         62.4      59.6      +2.8      7TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 63.4 TIED IN 2006)
                                           (WARMEST SINCE 62.7 IN 2016)

...SHERIDAN 2020 TOP 3 WARMEST DAILY HIGH TEMPERATURES...

1 - 103   SEPTEMBER  5
2 - 103   JULY 22
3 - 103   JULY 12

ALL TIME RECORD WARMEST DAILY HIGH TEMPERATURE...107 ON JULY 14 2002

...SHERIDAN 2020 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

65 ON JANUARY  4 (OLD RECORD 59 IN 1948)
72 ON MARCH  7 (OLD RECORD 65 IN 1986)
92 ON MAY 31 (TIED RECORD IN 1940)
95 ON JUNE 12 (OLD RECORD 93 IN 1936)
98 ON JUNE 13 (TIED RECORD IN 1940)
103 ON JULY 22 (TIED RECORD IN 2005)
101 ON AUGUST 17 (OLD RECORD 100 IN 1934)
100 ON AUGUST 18 (TIED RECORD IN 1988)
103 ON SEPTEMBER  5 (OLD RECORD 99 IN 1978)
93 ON SEPTEMBER 24 (OLD RECORD 90 IN 2011)
85 ON OCTOBER  6 (OLD RECORD 84 IN 1960)
77 ON NOVEMBER  2 (TIED RECORD IN 1924)
81 ON NOVEMBER  3 (OLD RECORD 77 IN 1921)
78 ON NOVEMBER  5 (TIED RECORD IN 1975)
67 ON DECEMBER  7 (OLD RECORD 62 IN 1970)
72 ON DECEMBER  8 (OLD RECORD 63 IN 1990)
60 ON DECEMBER 20 (OLD RECORD 58 IN 1956)

...SHERIDAN 2020 TOP 3 COLDEST DAILY HIGH TEMPERATURES...

1 - 8   JANUARY 14
2 - 13   OCTOBER 25
3 - 19   APRIL  2

ALL TIME RECORD COLDEST DAILY HIGH TEMPERATURE...-19 ON FEBRUARY  2 1989

...SHERIDAN 2020 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

24 ON APRIL 12 (OLD RECORD 31 IN 1991)
26 ON APRIL 13 (OLD RECORD 29 IN 1986)
28 ON OCTOBER 18 (OLD RECORD 29 IN 1925)
25 ON OCTOBER 23 (OLD RECORD 26 IN 1919)
13 ON OCTOBER 25 (OLD RECORD 24 IN 1997)
24 ON OCTOBER 26 (OLD RECORD 28 IN 1919)

...SHERIDAN AVERAGE LOW TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      16.3      11.4      +4.9      12TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 22.1 IN 2006)
                                           (WARMEST SINCE 22.1 IN 2006)

FEBRUARY     12.0      14.2      -2.2      48TH COLDEST OUT OF 113 YEARS
                                           (RECORD COLDEST WAS -8.7 IN 1936)
                                           (COLDEST SINCE 0.7 IN 2019)

MARCH        24.3      22.0      +2.3      TIED FOR THE 26TH WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 30.7 IN 1986)
                                           (WARMEST SINCE 28.9 IN 2017)

APRIL        24.3      29.8      -5.5      RECORD COLDEST OUT OF 113 YEARS
                                           (OLD RECORD COLDEST WAS 24.4 IN 2008)

MAY          38.9      38.2      +0.7      TIED FOR THE 52ND COLDEST OUT OF 114 YEARS
                                           (RECORD COLDEST WAS 34.8 IN 1909)
                                           (COLDEST SINCE 36.0 IN 2019)

JUNE         48.8      46.4      +2.4      TIED FOR THE 34TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 57.1 IN 1988)
                                           (WARMEST SINCE 49.6 IN 2016)

JULY         53.2      53.0      +0.2      TIED FOR THE 45TH COLDEST OUT OF 114 YEARS
                                           (RECORD COLDEST WAS 46.8 IN 1911)
                                           (COLDEST SINCE 52.3 IN 2015)

AUGUST       53.1      51.6      +1.5      TIED FOR THE 33RD WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 60.5 IN 1983)
                                           (WARMEST SINCE 54.9 IN 2013)

SEPTEMBER    42.4      41.6      +0.8      TIED FOR THE 51ST WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 50.6 IN 1963)
                                           (WARMEST SINCE 45.4 IN 2019)

OCTOBER      26.2      30.9      -4.7      6TH COLDEST OUT OF 114 YEARS
                                           (RECORD COLDEST WAS 22.5 IN 2019)
                                           (COLDEST SINCE 22.5 IN 2019)

NOVEMBER     21.1      19.4      +1.7      TIED FOR THE 48TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 30.9 IN 1949)
                                           (WARMEST SINCE 21.4 IN 2018)

DECEMBER     18.5      10.6      +7.9      TIED FOR THE 7TH WARMEST OUT OF 114 YEARS
                                           (RECORD WARMEST WAS 21.5 IN 1957)
                                           (WARMEST SINCE 18.9 IN 2004)

YEAR         31.7      30.9      +0.8      TIED FOR THE 43RD WARMEST OUT OF 113 YEARS
                                           (RECORD WARMEST WAS 34.2 IN 1987)
                                           (WARMEST SINCE 33.2 IN 2016)

...SHERIDAN 2020 TOP 3 WARMEST DAILY LOW TEMPERATURES...

1 - 68   JULY 23
2 - 66   JUNE 13
3 - 61   AUGUST 20

ALL TIME RECORD WARMEST DAILY LOW TEMPERATURE...76 ON JULY 28 1935

...SHERIDAN 2020 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

66 ON JUNE 13 (OLD RECORD 62 IN 1918)

...SHERIDAN 2020 TOP 3 COLDEST DAILY LOW TEMPERATURES...

1 - -10   OCTOBER 26
2 - -9   OCTOBER 25
3 - -9   FEBRUARY  4

ALL TIME RECORD COLDEST DAILY LOW TEMPERATURE...-41 ON DECEMBER  9 1919

...SHERIDAN 2020 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

2 ON APRIL 13 (OLD RECORD 8 IN 1933)
6 ON APRIL 14 (OLD RECORD 12 IN 1986)
25 ON SEPTEMBER  9 (OLD RECORD 28 IN 1929)
0 ON OCTOBER 23 (OLD RECORD 9 IN 1916)
-9 ON OCTOBER 25 (OLD RECORD 8 IN 1919)
-10 ON OCTOBER 26 (OLD RECORD 5 IN 1913)

$$



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