United States · 1991–2020

Best time to visit
Richland.

October leads for comfortable weather in Richland: typically 25.8°C by day, 12.2°C at night, with 96 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high25.8°C

Typical low12.2°C

Rain in October96 mm

Comfort

October

October · April · May

78climate match

Beach

September

September · May · June

76climate match

Outdoors

November

November · March · October

75climate match

The weakest month is January, scoring 26 against October’s 78 — days reach only 14.2°C, 10° below the 24°C the score treats as ideal, and nights drop to 2.4°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

2614.2° / 2.4°

Feb

3916.8° / 4.2°

Mar

5720.9° / 7.9°

Apr

7224.8° / 11.7°

May

6728.9° / 16.6°

Jun

4732.2° / 20.6°

Jul

3733.4° / 22.2°

Aug

4033.5° / 21.8°

Sep

6031.1° / 18.8°

Oct

7825.8° / 12.2°

Nov

5619.6° / 6.3°

Dec

3315.4° / 3.6°

Monthly climate evidence for Richland — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	14.2°C	2.4°C	138 mm	8.5	10 h 15	26	Strong coverage
February	16.8°C	4.2°C	130 mm	8.3	10 h 59	39	Strong coverage
March	20.9°C	7.9°C	144 mm	8.4	11 h 53	57	Strong coverage
April	24.8°C	11.7°C	148 mm	7.1	12 h 56	72	Strong coverage
May	28.9°C	16.6°C	111 mm	7.1	13 h 47	67	Strong coverage
June	32.2°C	20.6°C	113 mm	8.2	14 h 15	47	Strong coverage
July	33.4°C	22.2°C	128 mm	9.3	14 h 04	37	Strong coverage
August	33.5°C	21.8°C	119 mm	8.5	13 h 20	40	Strong coverage
September	31.1°C	18.8°C	88 mm	5.4	12 h 20	60	Strong coverage
October	25.8°C	12.2°C	96 mm	5.6	11 h 20	78	Strong coverage
November	19.6°C	6.3°C	112 mm	7	10 h 28	56	Strong coverage
December	15.4°C	3.6°C	130 mm	8	10 h 03	33	Strong coverage

What has changed

Richland runs +1.0°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

+1.4

Feb

+2.4

Mar

+1.6

Apr

0.0

May

+0.5

Jun

+0.1

Jul

+0.4

Aug

+0.7

Sep

+1.2

Oct

+1.3

Nov

+0.1

Dec

+1.9

October daytime highs, 2011–2025. Last recorded: 27.8°C.

Records at JACKSON INTL AP, 1963–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	29.4°C1 Jan 2022	-16.7°C21 Jan 1985	120 mm27 Jan 1994	358 mm1979 · driest 19 mm in 1986	63
February	30.6°C23 Feb 2023	-12.2°C4 Feb 1996	129 mm2 Feb 2016	267 mm2018 · driest 33 mm in 2000	63
March	31.7°C18 Mar 1982	-9.4°C3 Mar 1980	122 mm10 Mar 2016	384 mm1976 · driest 23 mm in 2007	63
April	34.4°C21 Apr 1987	-2.8°C4 Apr 1987	188 mm6 Apr 2003	405 mm1991 · driest 31 mm in 1987	63
May	37.2°C26 May 1964	2.2°C4 May 2013	91 mm31 May 2004	299 mm2025 · driest 8 mm in 1988	63
June	40.6°C29 Jun 1988	8.3°C1 Jun 1984	165 mm10 Jun 1997	242 mm2026 · driest 3 mm in 1988	63
July	41.1°C16 Jul 1980	10.6°C15 Jul 1967	138 mm26 Jul 2001	337 mm1979 · driest 26 mm in 1987	64
August	41.7°C30 Aug 2000	12.2°C14 Aug 2004	128 mm24 Aug 2022	324 mm2022 · driest 2 mm in 2023	63
September	40.0°C15 Sep 1980	1.7°C29 Sep 1967	145 mm5 Sep 2011	323 mm2011 · driest 1 mm in 2010	63
October	37.2°C2 Oct 2019	-3.3°C31 Oct 1993	177 mm4 Oct 1964	373 mm2019 · driest 0 mm in 2005	63
November	31.1°C2 Nov 1971	-8.3°C30 Nov 1976	98 mm25 Nov 2013	254 mm1977 · driest 13 mm in 1985	63
December	28.9°C26 Dec 2015	-15.6°C23 Dec 1989	125 mm3 Dec 1982	450 mm1982 · driest 23 mm in 1980	63

Typical days per month at JACKSON INTL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	12	4
February	3	0	8	4
March	9	<1	3	4
April	18	3	<1	4
May	27	15	0	4
June	30	25	0	4
July	31	29	0	4
August	31	28	0	3
September	28	21	0	2
October	19	6	<1	3
November	5	<1	5	3
December	2	0	11	4

How often, not how much — every day in JACKSON INTL 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	15%	29%	14%	32%	10.8–17.3°C
February	25%	28%	14%	31%	13.0–19.7°C
March	46%	27%	14%	28%	18.6–23.4°C
April	68%	24%	13%	26%	23.1–27.1°C
May	75%	25%	13%	26%	27.4–30.4°C
June	74%	26%	11%	28%	30.6–34.0°C
July	70%	30%	12%	36%	32.3–34.8°C
August	74%	26%	11%	30%	31.6–35.5°C
September	80%	20%	8%	17%	29.1–33.0°C
October	76%	16%	8%	16%	23.9–27.7°C
November	42%	23%	11%	23%	17.4–22.8°C
December	19%	27%	14%	31%	12.8–17.8°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.

1964Each stripe is one year’s mean temperature against the 62-year average. Warmest: 2023. Coolest: 1979.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4443249
NOAA station: USW00003940 · JACKSON INTL AP
Station distance: 11.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 32.24°, 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 JACKSON INTL AP is what differs

Pearl→Madison→Brandon→Flowood→Florence→Pelahatchie→

Or put two places side by side: Richland vs Pearl

Best time to visitRichland.