Red Bluff weather in August: Red Bluff, California: normal highs, lows, rain and records for August

Red Bluff in August has a normal high of 96°F and a normal low of 64°F, a daily mean of 80°F, falling from 98°F on the 1st to 95°F by the 31st. Measurable precipitation falls on 0 days in a normal August, 0.05 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 36°C and low of 18°C, 1 mm of precipitation in August.

  • NOAA stationRed Bluff Municipal Airport
  • Station IDUSW00024216
  • Location40.15°N 122.25°W
  • Elevation353 ft (108 m)
  • Population14,286
  1. Jan 57° 38°
  2. Feb 61° 41°
  3. Mar 66° 44°
  4. Apr 72° 47°
  5. May 82° 55°
  6. Jun 91° 62°
  7. Jul 98° 66°
  8. Aug 96° 64°
  9. Sep 91° 59°
  10. Oct 79° 51°
  11. Nov 64° 43°
  12. Dec 56° 38°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Red Bluff in August?

The normal high is 96°F and the normal low 64°F, for a daily mean of 79.9°F. August is 2.1°F cooler than July and 4.5°F warmer than September. August is the 2nd warmest month of the year in Red Bluff and the 12th wettest. Across the month the normal high falls 3°F, from 98°F on August 1 to 95°F on August 31. From one year to the next August's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 78°F and 82°F.

Red Bluff in August, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 2%).

Normal high and low on five days of August, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
August 198°F66°F1%0%
August 897°F65°F1%1%
August 1596°F64°F1%1%
August 2296°F63°F1%1%
August 3195°F62°F2%1%
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
Red Bluff: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 198°F66°F1%0%14 h 20 min
August 298°F65°F1%0%14 h 20 min
August 398°F65°F1%0%14 h 10 min
August 498°F65°F1%0%14 h 10 min
August 598°F65°F1%1%14 h 10 min
August 697°F65°F1%1%14 h 10 min
August 797°F65°F1%1%14 h 10 min
August 897°F65°F1%1%14 h
August 997°F65°F1%1%14 h
August 1097°F64°F1%1%14 h
August 1197°F64°F1%1%14 h
August 1297°F64°F1%1%14 h
August 1397°F64°F1%1%13 h 50 min
August 1496°F64°F1%1%13 h 50 min
August 1596°F64°F1%1%13 h 50 min
August 1696°F64°F1%1%13 h 50 min
August 1796°F63°F1%1%13 h 40 min
August 1896°F63°F1%1%13 h 40 min
August 1996°F63°F1%1%13 h 40 min
August 2096°F63°F1%1%13 h 40 min
August 2196°F63°F1%1%13 h 30 min
August 2296°F63°F1%1%13 h 30 min
August 2395°F63°F1%1%13 h 30 min
August 2495°F63°F1%1%13 h 30 min
August 2595°F62°F1%1%13 h 20 min
August 2695°F62°F2%1%13 h 20 min
August 2795°F62°F2%1%13 h 20 min
August 2895°F62°F2%1%13 h 20 min
August 2995°F62°F2%1%13 h 10 min
August 3095°F62°F2%1%13 h 10 min
August 3195°F62°F2%1%13 h 10 min
Normal high
96°FAugust average
Normal low
64°FAugust average
Precipitation
0.05 inmonth total
Days with precipitation
fewer than 10.01 inch or more
Days at 90°F or more
26
Daylight
14 h 20 min to 13 h 10 minAugust 1 to August 31
Days at 70°F or more
31
Days at 80°F or more
31
Sunshine
96%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00024216; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Red Bluff in August?

On a given August day the chance of 0.01 inch or more is 1% on average, highest around August 31 (2%). In all, 0.05 in falls on 0 days of a normal August.

In a normal August in Red Bluff, 26 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024216.

How humid and windy is Red Bluff in August?

At 3 p.m. the normal temperature is 94°F with 17% relative humidity and a dew point of 43°F; at 6 a.m. it is 63°F with 56% humidity. The wind averages 6.8 mph, most often from the south-southeast in the afternoon. A dew point under 50°F feels dry.

A normal August day at the station, hour by hour (local standard time)
TimeTemperatureDew pointHumidityWindClear or few clouds
6 a.m.63°F47°F56%5.1 mph95%
9 a.m.78°F48°F34%6.9 mph94%
noon89°F46°F22%7.5 mph94%
3 p.m.94°F43°F17%10.2 mph93%
6 p.m.90°F46°F22%9.1 mph94%
9 p.m.77°F50°F39%4.3 mph96%

Source: NOAA NCEI 1991-2020 hourly normals, station USW00024216. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).

What are the records for August in Red Bluff?

The warmest August temperature on this station's record (since 1933) is 121°F, on August 7, 1981; the coldest is 50°F, on August 29, 1946. The wettest August brought 1.56 in (1965).

The August mean against the 1991-2020 normal of 79.9°F: 2021 82.5°F (+2.6), 2022 84.2°F (+4.3), 2023 83.3°F (+3.4), 2024 80.1°F (+0.2), 2025 82.2°F (+2.3), 2026 81.1°F (+1.2). 6 of 6 ran warmer than normal.

Red Bluff: August in recent years against the 1991-2020 normal
AugustMeanAgainst normalPrecip.
202182.5°F+2.6°F0.00 in
202284.2°F+4.3°F0.00 in
202383.3°F+3.4°F0.09 in
202480.1°F+0.2°F0.10 in
202582.2°F+2.3°F0.13 in
202681.1°F+1.2°F0.00 in

Source: records: ACIS, station USW00024216; recent months: ACIS, station USW00024216. Records and recent months use complete months only.

How does August in Red Bluff compare across California?

Across the 219 places PlainClimate covers in California, August normal highs run from 63°F in Bodega to 109°F in Needles; Red Bluff's is 96°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places