Mullan climate

Mullan Weather in September

NOAA 1991-2020 normals for Mullan, 0.8 km from Mullan

Average highs run from 76°F on September 1 to 64°F on September 30, and lows from 45°F to 38°F. Normal precipitation for the month is 1.57 in.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Mullan, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
71°F
Average low
42°F
Precipitation
1.57 in
Record high
85°FSep 3, 1950
Record low
17°FSep 22, 2000
Chance of a freeze
51%
Days of 90°F or more
0.5
Daylight
13 h 21 min to 11 h 43 min
Cloud cover
51%
Humidity
55%
Dew point
38°F
Wind
4.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 176°F45°F82°F 194534°F 19990%
Sep 276°F45°F83°F 202233°F 20040%
Sep 376°F45°F85°F 195033°F 20000%
Sep 475°F45°F82°F 195533°F 20140%
Sep 575°F44°F82°F 200632°F 19960%
Sep 674°F44°F83°F 202433°F 20100%
Sep 774°F44°F82°F 202430°F 20200%
Sep 874°F44°F80°F 202429°F 20200%
Sep 973°F44°F77°F 201130°F 20000%
Sep 1073°F43°F77°F 201128°F 20140%
Sep 1173°F43°F83°F 195324°F 19490%
Sep 1272°F43°F76°F 201124°F 19490%
Sep 1372°F43°F77°F 194430°F 20160%
Sep 1472°F42°F74°F 200230°F 19410%
Sep 1571°F42°F77°F 199830°F 19410%
Sep 1671°F42°F79°F 193829°F 19470%
Sep 1770°F42°F78°F 193824°F 19470%
Sep 1870°F41°F78°F 193823°F 19570%
Sep 1970°F41°F72°F 200825°F 19570%
Sep 2069°F41°F71°F 193829°F 19410%
Sep 2169°F41°F77°F 193819°F 20000%
Sep 2268°F40°F72°F 195217°F 20000%
Sep 2368°F40°F78°F 200919°F 20000%
Sep 2467°F40°F77°F 201126°F 19480%
Sep 2567°F39°F78°F 195229°F 19550%
Sep 2666°F39°F74°F 195226°F 19990%
Sep 2766°F39°F72°F 202225°F 19450%
Sep 2865°F39°F74°F 202220°F 20190%
Sep 2965°F38°F70°F 201620°F 20190%
Sep 3064°F38°F74°F 195721°F 19500%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mullan, in percent, and of at least 0.1 inch of snowfall.00.10.20.31102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

September 1
sunrise 6:02 AM, sunset 7:23 PM
September 30
sunrise 6:41 AM, sunset 6:24 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00106230 (Mullan), public domain. Records: NOAA GHCN-Daily, station USW00024154, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.