Climatological Report (Monthly)
Issued by NWS
Issued by NWS
578
CXUS56 KOTX 011318
CLMMWH
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
618 AM PDT THU OCT 01 2026
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...THE MOSES LAKE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 100 09/04/2020
LOW 27 09/23/2000
HIGHEST 85 09/21 MM MM 98 09/02
09/03
LOWEST 33 09/28 MM MM 39 09/22
AVG. MAXIMUM 74.9 78.7 -3.8 84.3
AVG. MINIMUM 46.7 47.0 -0.3 53.0
MEAN 60.8 62.8 -2.0 68.7
DAYS MAX >= 90 0 3.3 -3.3 5
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.2 -0.2 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.20 1959
MINIMUM T 2024
TOTALS 0.43 0.26 0.17 0.13
DAILY AVG. 0.01 0.01 0.00 0.00
DAYS >= .01 7 2.8 4.2 3
DAYS >= .10 1 0.8 0.2 0
DAYS >= .50 0 0.0 0.0 0
DAYS >= 1.00 0 0.0 0.0 0
GREATEST
24 HR. TOTAL 0.25 09/12 TO 09/13 0.07
DEGREE DAYS
HEATING TOTAL 127 117 10 28
SINCE 7/1 135 133 2 MM
COOLING TOTAL 9 53 -44 145
SINCE 1/1 734 676 58 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.0
HIGHEST WIND SPEED/DIRECTION 38/240 DATE 09/25
HIGHEST GUST SPEED/DIRECTION 52/240 DATE 09/25
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.15
NUMBER OF DAYS FAIR 25
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 58
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 1
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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