Climatological Report (Monthly)
Issued by NWS

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086
CXUS55 KBYZ 011152
CLMLVM


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
552 AM MDT FRI JUN 1 2018

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

...THE LIVINGSTON MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            80   05/26
LOWEST             31   05/02
AVG. MAXIMUM     68.7              64.6     4.1
AVG. MINIMUM     42.4              36.6     5.8
MEAN             55.5              50.6     4.9
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      1
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           3.45              2.66    0.79
DAYS >= .01        16
DAYS >= .10        10
DAYS >= .50         2
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.82   05/23 TO 05/23

DEGREE_DAYS
HEATING TOTAL     284               448    -164
 SINCE 7/1       7263              7396    -133
COOLING TOTAL       0                 1      -1
 SINCE 1/1          0                 1      -1
.................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    37/220    DATE  05/30
HIGHEST GUST SPEED/DIRECTION    45/220    DATE  05/30

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                      11
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

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

&&

...MAY 2018 MONTH IN REVIEW FOR LIVINGSTON...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR LIVINGSTON FOR MAY 2018. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1981 TO 2010. MONTHLY RANKINGS
FOR PRECIPITATION 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   2018 VALUES  NORMALS    DEPARTURE  RANKING

MAY          3.45     2.66       +0.79      17TH WETTEST OUT OF 70 YEARS
                                            (RECORD WETTEST WAS 6.48 IN 1981)
                                            (WETTEST SINCE 4.08 IN 2015)

... MAY 2018 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

NONE

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

... AVERAGE TEMPERATURES...

 MONTH   2018 VALUES  NORMALS   DEPARTURE  RANKING

MAY          55.6      50.6      +5.0      TIED FOR THE 3RD WARMEST OUT OF 70 YEARS
                                           (RECORD WARMEST WAS 60.0 IN 1958)
                                           (WARMEST SINCE 55.6 IN 1987)

... AVERAGE HIGH TEMPERATURES...

 MONTH   2018 VALUES  NORMALS   DEPARTURE  RANKING

MAY          68.7      64.6      +4.1      12TH WARMEST OUT OF 70 YEARS
                                           (RECORD WARMEST WAS 74.9 IN 1958)
                                           (WARMEST SINCE 70.4 IN 2001)

... MAY 2018 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

... MAY 2018 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

47 ON MAY 19 (OLD RECORD 48 IN 1974)

... AVERAGE LOW TEMPERATURES...

 MONTH   2018 VALUES  NORMALS   DEPARTURE  RANKING

MAY          42.4      36.6      +5.8      3RD WARMEST OUT OF 70 YEARS
                                           (RECORD WARMEST WAS 45.1 IN 1958)
                                           (WARMEST SINCE 42.5 IN 2000)

... MAY 2018 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

NONE

... MAY 2018 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

$$




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