United States · 1991–2020

Best time to visit
Red Bluff.

October leads for comfortable weather in Red Bluff: typically 26.1°C by day, 10.7°C at night, with 27 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high26.1°C

Typical low10.7°C

Rain in October27 mm

Comfort

October

October · May · April

85climate match

Beach

June

June · September · July

77climate match

Outdoors

April

April · October · March

88climate match

The weakest month is January, scoring 28 against October’s 85 — days reach only 13.6°C, 10° below the 24°C the score treats as ideal, and nights drop to 3.5°C.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

2813.6° / 3.5°

Feb

4216° / 4.9°

Mar

5718.8° / 6.5°

Apr

8022.2° / 8.4°

May

8327.5° / 12.4°

Jun

6832.8° / 16.7°

Jul

5136.7° / 18.9°

Aug

5735.7° / 17.5°

Sep

7032.9° / 15.1°

Oct

8526.1° / 10.7°

Nov

5717.9° / 5.8°

Dec

2813.2° / 3.3°

Monthly climate evidence for Red Bluff — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	13.6°C	3.5°C	115 mm	9.2	9 h 36	28	Strong coverage
February	16°C	4.9°C	100 mm	8.1	10 h 37	42	Strong coverage
March	18.8°C	6.5°C	76 mm	7.8	11 h 49	57	Strong coverage
April	22.2°C	8.4°C	38 mm	4.7	13 h 13	80	Strong coverage
May	27.5°C	12.4°C	33 mm	4.2	14 h 23	83	Strong coverage
June	32.8°C	16.7°C	11 mm	1.7	15 h 01	68	Strong coverage
July	36.7°C	18.9°C	2 mm	0.1	14 h 46	51	Strong coverage
August	35.7°C	17.5°C	1 mm	0.2	13 h 45	57	Strong coverage
September	32.9°C	15.1°C	6 mm	0.8	12 h 24	70	Strong coverage
October	26.1°C	10.7°C	27 mm	3.1	11 h 04	85	Strong coverage
November	17.9°C	5.8°C	64 mm	6	9 h 54	57	Strong coverage
December	13.2°C	3.3°C	106 mm	9.5	9 h 19	28	Strong coverage

What has changed

Red Bluff runs +1.2°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+2.2

Feb

+1.1

Mar

+0.9

Apr

+1.8

May

+0.8

Jun

+1.6

Jul

+0.7

Aug

+0.9

Sep

+0.9

Oct

+1.0

Nov

+1.2

Dec

+1.2

October daytime highs, 2011–2025. Last recorded: 23.6°C.

Records at RED BLUFF MUNI AP, 1934–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.7°C16 Jan 2014	-8.3°C9 Jan 1937	90 mm8 Jan 1995	546 mm1995 · driest 0 mm in 2007	90
February	30.0°C11 Feb 2022	-6.1°C5 Feb 1989	72 mm3 Feb 1998	353 mm1998 · driest 0 mm in 2020	90
March	33.3°C23 Mar 1960	-3.3°C4 Mar 1966	60 mm9 Mar 1995	260 mm1995 · driest 0 mm in 1956	90
April	36.7°C14 Apr 1947	-2.2°C1 Apr 1936	54 mm6 Apr 2018	166 mm1948 · driest 1 mm in 1964	91
May	42.2°C31 May 2021	0.6°C10 May 1942	48 mm28 May 1998	166 mm1998 · driest 0 mm in 1969	91
June	47.2°C25 Jun 2006	5.6°C12 Jun 1952	31 mm16 Jun 1937	43 mm2009 · driest 0 mm in 1981	91
July	48.3°C15 Jul 1972	11.1°C2 Jul 1963	22 mm18 Jul 2007	22 mm2007 · driest 0 mm in 1988	91
August	49.4°C7 Aug 1981	10.0°C22 Aug 1947	26 mm20 Aug 1968	40 mm1965 · driest 0 mm in 1981	90
September	47.8°C4 Sep 1988	5.0°C30 Sep 2007	59 mm17 Sep 1989	126 mm1989 · driest 0 mm in 1963	89
October	41.7°C4 Oct 1980	-1.1°C31 Oct 1935	87 mm24 Oct 1989	131 mm1989 · driest 0 mm in 1966	90
November	33.9°C1 Nov 1949	-4.4°C13 Nov 1985	70 mm7 Nov 2005	214 mm1970 · driest 0 mm in 1959	90
December	28.3°C15 Dec 1980	-10.6°C23 Dec 1990	86 mm1 Dec 1960	274 mm1940 · driest 0 mm in 1989	89

Typical days per month at RED BLUFF MUNI AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	6	4
February	1	0	3	4
March	4	<1	<1	3
April	9	3	<1	1
May	21	11	0	1
June	27	22	0	<1
July	31	30	0	<1
August	31	29	0	0
September	28	23	0	<1
October	19	8	0	<1
November	3	<1	2	3
December	0	0	7	4

The best month has moved. On the 1961–1990 numbers the strongest month here was October (scoring 86); on 2011–2025 it is April (89). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in RED BLUFF MUNI AP’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	8%	30%	13%	39%	10.9–15.4°C
February	18%	28%	12%	36%	13.3–18.2°C
March	36%	25%	9%	28%	15.4–21.2°C
April	64%	16%	5%	15%	19.4–25.5°C
May	85%	12%	3%	9%	25.0–30.3°C
June	94%	6%	1%	3%	30.3–35.4°C
July	99%	<1%	<1%	0%	34.8–38.7°C
August	98%	1%	<1%	<1%	33.8–37.5°C
September	96%	4%	1%	3%	30.5–35.0°C
October	81%	11%	3%	10%	23.2–29.0°C
November	33%	21%	8%	26%	14.9–20.8°C
December	7%	28%	11%	34%	10.6–15.9°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1935Each stripe is one year’s mean temperature against the 85-year average. Warmest: 2014. Coolest: 1948.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5570065
NOAA station: USW00024216 · RED BLUFF MUNI AP
Station distance: 3.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 40.18°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from RED BLUFF MUNI AP is what differs

Los Molinos→Rancho Tehama Reserve→Gerber→Bend→Tehama→Richfield→

Or put two places side by side: Red Bluff vs Los Molinos

Best time to visitRed Bluff.

October

June

April

The whole year,without the guesswork.

Red Bluff runs +1.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Red Bluff.

The whole year,
without the guesswork.

Red Bluff runs +1.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.