United States · 1991–2020

Best time to visit
Petersburg.

October leads for comfortable weather in Petersburg: typically 23.1°C by day, 6.8°C at night, with 92 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23.1°C

Typical low6.8°C

Rain in October92 mm

Comfort

October

October · May · September

71climate match

Beach

July

July · August · September

62climate match

Outdoors

October

October · April · November

71climate match

The weakest month is January, scoring 5 against October’s 71 — days reach only 9°C, 15° below the 24°C the score treats as ideal, and nights drop to -3.2°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

59° / -3.2°

Feb

1311.7° / -1.7°

Mar

3116.5° / 1.9°

Apr

5921.9° / 6.2°

May

6926.4° / 11.8°

Jun

5730.6° / 16.5°

Jul

4832.2° / 18.6°

Aug

5432.1° / 17.3°

Sep

6629.2° / 13.2°

Oct

7123.1° / 6.8°

Nov

3716.3° / 1.6°

Dec

610.7° / -1.5°

Monthly climate evidence for Petersburg — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9°C	-3.2°C	115 mm	8.2	10 h 01	5	Strong coverage
February	11.7°C	-1.7°C	120 mm	7.8	10 h 51	13	Strong coverage
March	16.5°C	1.9°C	140 mm	9.9	11 h 52	31	Strong coverage
April	21.9°C	6.2°C	130 mm	9	13 h 02	59	Strong coverage
May	26.4°C	11.8°C	116 mm	9.3	14 h 00	69	Strong coverage
June	30.6°C	16.5°C	126 mm	9.8	14 h 31	57	Strong coverage
July	32.2°C	18.6°C	120 mm	9.8	14 h 19	48	Strong coverage
August	32.1°C	17.3°C	111 mm	7.8	13 h 29	54	Strong coverage
September	29.2°C	13.2°C	111 mm	6.3	12 h 21	66	Strong coverage
October	23.1°C	6.8°C	92 mm	6.9	11 h 14	71	Strong coverage
November	16.3°C	1.6°C	102 mm	7.4	10 h 15	37	Strong coverage
December	10.7°C	-1.5°C	145 mm	8.6	9 h 47	6	Strong coverage

What has changed

Petersburg runs +1.6°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

+1.6

Feb

+2.5

Mar

+2.0

Apr

+1.4

May

+1.3

Jun

+1.6

Jul

+1.3

Aug

+0.7

Sep

+1.6

Oct

+1.8

Nov

+0.9

Dec

+2.3

October daytime highs, 2011–2025. Last recorded: 22.4°C.

Records at LEWISBURG EXP STN, 1890–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C15 Jan 2017	-28.9°C21 Jan 1985	154 mm23 Jan 1999	433 mm1950 · driest 13 mm in 1986	127
February	27.8°C24 Feb 2018	-26.1°C14 Feb 1905	114 mm18 Feb 2021	334 mm1939 · driest 22 mm in 1978	126
March	31.7°C27 Mar 1910	-20.6°C3 Mar 2002	229 mm28 Mar 1902	405 mm1973 · driest 24 mm in 1910	126
April	32.8°C24 Apr 1925	-7.8°C8 Apr 2007	94 mm16 Apr 1921	320 mm1912 · driest 13 mm in 2012	127
May	36.7°C22 May 1941	-1.7°C4 May 1986	107 mm6 May 2003	366 mm1983 · driest 15 mm in 1941	128
June	42.8°C30 Jun 2012	3.3°C1 Jun 1966	173 mm18 Jun 1939	342 mm1900 · driest 2 mm in 1988	127
July	44.4°C2 Jul 2012	6.1°C20 Jul 2014	133 mm12 Jul 1989	356 mm1989 · driest 17 mm in 1983	128
August	42.2°C8 Aug 1930	3.9°C27 Aug 2015	147 mm9 Aug 1923	289 mm1923 · driest 14 mm in 1999	129
September	42.2°C7 Sep 1925	-0.6°C29 Sep 1942	150 mm14 Sep 1979	315 mm1957 · driest 2 mm in 1984	127
October	37.2°C4 Oct 2019	-8.3°C26 Oct 2013	138 mm17 Oct 1975	253 mm1975 · driest 0 mm in 1963	127
November	31.1°C2 Nov 2016	-18.9°C25 Nov 1950	127 mm9 Nov 1986	291 mm1986 · driest 12 mm in 1953	127
December	25.6°C2 Dec 1970	-24.4°C22 Dec 1989	133 mm13 Dec 1956	371 mm1990 · driest 20 mm in 1958	127

Typical days per month at LEWISBURG EXP STN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	21	4	<1
February	<1	0	18	4	<1
March	3	0	13	4	<1
April	10	<1	4	4	0
May	21	7	<1	4	0
June	28	19	0	4	0
July	30	25	0	4	0
August	30	25	0	3	0
September	26	14	0	3	0
October	13	2	4	3	0
November	2	<1	14	3	0
December	0	0	19	5	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 77); on 2011–2025 it is October (79). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in LEWISBURG EXP STN’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	3%	30%	14%	34%	5.7–12.7°C
February	7%	31%	15%	36%	7.5–14.7°C
March	22%	32%	15%	37%	12.8–19.6°C
April	47%	29%	13%	35%	19.2–23.8°C
May	65%	29%	13%	36%	23.8–28.2°C
June	70%	30%	12%	35%	28.2–33.1°C
July	70%	30%	13%	34%	30.3–34.0°C
August	75%	25%	10%	26%	29.9–34.0°C
September	77%	21%	9%	19%	26.7–31.7°C
October	61%	19%	9%	19%	20.8–25.4°C
November	23%	25%	11%	27%	13.3–18.6°C
December	3%	28%	14%	32%	7.7–13.3°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.

1900Each stripe is one year’s mean temperature against the 122-year average. Warmest: 1921. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4648917
NOAA station: USC00405187 · LEWISBURG EXP STN
Station distance: 18.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 35.32°, 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 LEWISBURG EXP STN is what differs

Lewisburg→Cornersville→Lynnville→Anes→Archer→Belfast→

Or put two places side by side: Petersburg vs Lewisburg

Best time to visitPetersburg.

October

July

October

The whole year,without the guesswork.

Petersburg runs +1.6°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Petersburg.

The whole year,
without the guesswork.

Petersburg runs +1.6°C
on the 1961–1990 baseline.

Nearby, measured,
and named.