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000
CXUS55 KBYZ 011037
CLMLVM

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
434 AM MDT SUN OCT 01 2023

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

...THE LIVINGSTON MT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1948 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           88   09/02
LOWEST            31   09/29
AVG. MAXIMUM    75.2               73.5     1.7
AVG. MINIMUM    44.4               41.2     3.2
MEAN            59.8               57.3     2.5
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32     1
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
TOTALS          1.98               1.20    0.78
DAYS >= .01       10
DAYS >= .10        3
DAYS >= .50        1
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   1.00   09/21 TO 09/22


DEGREE DAYS
HEATING TOTAL    170                250     -80
 SINCE 7/1       216                346    -130
COOLING TOTAL     18                 20      -2
 SINCE 1/1       289                276      13
................................................

WIND (MPH)
AVERAGE WIND SPEED              10.4
HIGHEST WIND SPEED/DIRECTION    51/210    DATE  09/18
HIGHEST GUST SPEED/DIRECTION    69/210    DATE  09/18

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                      13
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

&&

THIS IS AN AUTOMATED...UNATTENDED WEATHER STATION AND MAY
UNDERESTIMATE WINTER PRECIPITATION.

...SEPTEMBER 2023 MONTH IN REVIEW FOR LIVINGSTON...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR LIVINGSTON FOR SEPTEMBER 2023. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1991 TO 2020. 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   2023 VALUES  NORMALS    DEPARTURE  RANKING

SEPTEMBER    1.98     1.20       +0.78      19TH WETTEST OUT OF 76 YEARS
                                            (RECORD WETTEST WAS 3.78 IN 2019)
                                            (WETTEST SINCE 3.78 IN 2019)

... SEPTEMBER 2023 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   2023 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    59.8      57.3      +2.5      20TH WARMEST OUT OF 76 YEARS
                                           (RECORD WARMEST WAS 64.2 IN 1998)
                                           (WARMEST SINCE 62.1 IN 2022)

... AVERAGE HIGH TEMPERATURES...

 MONTH   2023 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    75.2      73.5      +1.7      22ND WARMEST OUT OF 76 YEARS
                                           (RECORD WARMEST WAS 81.6 IN 1998)
                                           (WARMEST SINCE 80.0 IN 2022)

... SEPTEMBER 2023 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

NONE

... SEPTEMBER 2023 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

NONE

... AVERAGE LOW TEMPERATURES...

 MONTH   2023 VALUES  NORMALS   DEPARTURE  RANKING

SEPTEMBER    44.4      41.2      +3.2      TIED FOR THE 10TH WARMEST OUT OF 76 YEARS
                                           (RECORD WARMEST WAS 47.3 IN 1963)
                                           (WARMEST SINCE 45.3 IN 2019)

... SEPTEMBER 2023 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

60 ON SEPTEMBER  3 (OLD RECORD 59 IN 1955)

... SEPTEMBER 2023 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

NONE

$$