Climatological Report (Monthly)
Issued by NWS Billings, MT

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799
CXUS55 KBYZ 011037
CLMBIL


CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
432 AM MDT WED MAY 1 2019

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

...THE BILLINGS MT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1934 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST            82   04/19
LOWEST             25   04/12
AVG. MAXIMUM     57.7              57.6     0.1
AVG. MINIMUM     39.0              34.7     4.3
MEAN             48.4              46.2     2.2
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      7
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
TOTALS           1.98              1.66    0.32
DAYS >= .01        14
DAYS >= .10         8
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.37   04/09 TO 04/09

SNOWFALL (INCHES)
TOTALS            0.4               8.3    -7.9
SINCE 7/1        60.7              53.0     7.7
SNOWDEPTH AVG.      0
DAYS >= TRACE       4
DAYS >= 1.0         0
GREATEST
 SNOW DEPTH         T   04/30
 24 HR TOTAL      0.4   04/15 TO 04/15

DEGREE_DAYS
HEATING TOTAL     493               567     -74
 SINCE 7/1       7077              6377     700
COOLING TOTAL       1                 1       0
 SINCE 1/1          1                 1       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              10.2
HIGHEST WIND SPEED/DIRECTION    46/320    DATE  04/28
HIGHEST GUST SPEED/DIRECTION    57/310    DATE  04/28

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                4     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      3
HAZE                      4

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

&&

...APRIL 2019 MONTH IN REVIEW FOR BILLINGS...

BELOW IS A SUMMARY OF THE TEMPERATURE...PRECIPITATION...AND WIND
STATISTICS FOR BILLINGS FOR APRIL 2019. 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...SNOWFALL...AND TEMPERATURES USE A PERIOD OF RECORD
THAT STARTED IN AUGUST 1934 AT THE BILLINGS AIRPORT. MONTHLY RANKINGS
FOR WIND USE A PERIOD OF RECORD THAT STARTED IN 1984.

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

...BILLINGS MONTHLY PRECIPITATION...

 MONTH   2019 VALUES  NORMALS    DEPARTURE  RANKING

APRIL        1.98     1.66       +0.32      25TH WETTEST OUT OF 85 YEARS
                                            (RECORD WETTEST WAS 4.42 IN 1955)
                                            (WETTEST SINCE 2.16 IN 2018)

...BILLINGS APRIL 2019 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

NONE

...BILLINGS MONTHLY SNOWFALL...

 MONTH   2019 VALUES  NORMALS    DEPARTURE  RANKING

APRIL         0.4       8.3       -7.9      TIED FOR THE 12TH LEAST SNOWIEST OUT OF 85 YEARS
                                            (RECORD LEAST SNOWIEST WAS 0.0 TIED IN 1949)
                                            (LEAST SNOWIEST SINCE 0.4 IN 2012)

...BILLINGS APRIL 2019 BROKEN OR TIED DAILY SNOWFALL RECORDS...

NONE

...BILLINGS AVERAGE TEMPERATURES...

 MONTH   2019 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        48.4      46.2      +2.2      21ST WARMEST OUT OF 85 YEARS
                                           (RECORD WARMEST WAS 54.6 IN 1980)
                                           (WARMEST SINCE 49.6 IN 2016)

...BILLINGS AVERAGE HIGH TEMPERATURES...

 MONTH   2019 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        57.7      57.6      +0.1      37TH WARMEST OUT OF 85 YEARS
                                           (RECORD WARMEST WAS 69.0 IN 1987)
                                           (WARMEST SINCE 58.0 IN 2017)

...BILLINGS APRIL 2019 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...BILLINGS APRIL 2019 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

...BILLINGS AVERAGE LOW TEMPERATURES...

 MONTH   2019 VALUES  NORMALS   DEPARTURE  RANKING

APRIL        39.0      34.7      +4.3      5TH WARMEST OUT OF 85 YEARS
                                           (RECORD WARMEST WAS 40.8 IN 1980)
                                           (WARMEST SINCE 39.1 IN 1987)

...BILLINGS APRIL 2019 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

46 ON APRIL  8 (TIED RECORD IN 1996)
50 ON APRIL 19 (TIED RECORD IN 1999)

...BILLINGS APRIL 2019 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

...BILLINGS MONTHLY WIND AVERAGES...

 MONTH   2019 VALUES  NORMALS    DEPARTURE  RANKING

APRIL        10.2      10.5       -0.3      TIED FOR THE 14TH LEAST WINDIEST OUT OF 70 YEARS
                                            (RECORD LEAST WINDIEST WAS 8.8 IN 1983)
                                            (LEAST WINDIEST SINCE 10.2 IN 2018)

$$




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