Fall River Mills climate

Fall River Mills Weather in May

NOAA 1991-2020 normals for Hat Creek, 12 km from Fall River Mills

Average highs run from 69°F on May 1 to 78°F on May 31, and lows from 35°F to 41°F. Normal precipitation for the month is 1.48 in over about 8 wet days.

May day by day

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

Normal daily high and low temperature at Fall River Mills, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
74°F
Average low
38°F
Precipitation
1.48 in
Record high
97°FMay 17, 2008
Record low
21°FMay 1, 1954
Chance of a freeze
97%
Days of 90°F or more
2.3
Daylight
13 h 59 min to 14 h 55 min
Cloud cover
53%
Humidity
64%
Dew point
38°F
Wind
7.2 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
May 169°F35°F84°F 201421°F 195428%1%
May 269°F35°F82°F 196624°F 196428%1%
May 369°F35°F83°F 196625°F 200728%0%
May 470°F35°F86°F 199222°F 201727%0%
May 570°F36°F88°F 199227°F 197827%0%
May 671°F36°F86°F 199227°F 196427%0%
May 771°F36°F85°F 199226°F 197926%0%
May 871°F36°F85°F 201229°F 197726%0%
May 972°F37°F85°F 196929°F 194826%0%
May 1072°F37°F85°F 196928°F 200026%0%
May 1172°F37°F85°F 199725°F 197025%0%
May 1273°F37°F87°F 197323°F 197025%0%
May 1373°F38°F89°F 197328°F 197025%0%
May 1473°F38°F87°F 197327°F 199924%0%
May 1574°F38°F90°F 200825°F 199924%0%
May 1674°F38°F94°F 200825°F 199924%0%
May 1774°F39°F97°F 200829°F 197424%0%
May 1874°F39°F94°F 200828°F 197424%0%
May 1975°F39°F92°F 200827°F 200323%0%
May 2075°F39°F88°F 196329°F 199623%0%
May 2175°F40°F87°F 196725°F 201723%0%
May 2276°F40°F89°F 200126°F 196022%0%
May 2376°F40°F89°F 200330°F 195322%0%
May 2476°F40°F90°F 199226°F 195322%0%
May 2576°F40°F89°F 198231°F 197821%0%
May 2677°F40°F89°F 198329°F 198921%0%
May 2777°F41°F90°F 198330°F 197721%0%
May 2877°F41°F94°F 198428°F 202520%0%
May 2977°F41°F94°F 198631°F 197920%0%
May 3078°F41°F96°F 198630°F 201119%0%
May 3178°F41°F95°F 198632°F 197819%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Fall River Mills, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 6:04 AM, sunset 8:03 PM
May 31
sunrise 5:36 AM, sunset 8:31 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00043824 (Hat Creek), public domain. Records: NOAA GHCN-Daily, station USC00045983, 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.