Whatcom County climate

Whatcom County Weather in August

NOAA 1991-2020 normals for Upper Baker Dam, 23.7 km from Whatcom County

Average highs run from 77°F on August 1 to 73°F on August 31, and lows from 52°F to 50°F. Normal precipitation for the month is 1.92 in over about 7 wet days.

August day by day

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

Normal daily high and low temperature at Whatcom County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
75°F
Average low
51°F
Precipitation
1.92 in
Record high
100°FAug 12, 2021
Record low
38°FAug 29, 1969
Chance of a freeze
0%
Days of 90°F or more
1.1
Daylight
15 h 05 min to 13 h 28 min
Cloud cover
51%
Humidity
78%
Dew point
52°F
Wind
2.9 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
Aug 177°F52°F86°F 201544°F 195318%0%
Aug 277°F52°F84°F 196143°F 195718%0%
Aug 377°F52°F90°F 199344°F 200218%0%
Aug 477°F52°F89°F 199342°F 195019%0%
Aug 577°F52°F85°F 201245°F 195919%0%
Aug 677°F52°F82°F 195546°F 195119%0%
Aug 777°F52°F87°F 201848°F 195619%0%
Aug 876°F52°F94°F 197847°F 195519%0%
Aug 976°F52°F94°F 196042°F 195519%0%
Aug 1076°F52°F88°F 197743°F 195419%0%
Aug 1176°F52°F93°F 199045°F 195420%0%
Aug 1276°F52°F100°F 202144°F 200020%0%
Aug 1376°F52°F90°F 201040°F 195520%0%
Aug 1476°F52°F88°F 201044°F 195520%0%
Aug 1576°F52°F90°F 201044°F 196021%0%
Aug 1676°F52°F90°F 202043°F 200021%0%
Aug 1775°F51°F93°F 197742°F 196921%0%
Aug 1875°F51°F88°F 201642°F 197322%0%
Aug 1975°F51°F89°F 201644°F 197322%0%
Aug 2075°F51°F87°F 201844°F 195223%0%
Aug 2175°F51°F85°F 195842°F 195523%0%
Aug 2275°F51°F86°F 195643°F 196924%0%
Aug 2374°F51°F83°F 202541°F 195524%0%
Aug 2474°F51°F85°F 195841°F 200325%0%
Aug 2574°F50°F85°F 201640°F 195426%0%
Aug 2674°F50°F87°F 201642°F 194926%0%
Aug 2774°F50°F85°F 199441°F 195427%0%
Aug 2874°F50°F86°F 196741°F 200028%0%
Aug 2973°F50°F85°F 197438°F 196928%0%
Aug 3073°F50°F85°F 198742°F 196529%0%
Aug 3173°F50°F86°F 198742°F 196629%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Whatcom County, 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).

August 1
sunrise 5:41 AM, sunset 8:46 PM
August 31
sunrise 6:23 AM, sunset 7:51 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458715 (Upper Baker Dam), public domain. Records: NOAA GHCN-Daily, station USW00024217, 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.