United States · 1991–2020

Best time to visit
Andover.

August leads for comfortable weather in Andover: typically 25.6°C by day, 12.2°C at night, with 102 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.6°C

Typical low12.2°C

Rain in August102 mm

Comfort

August

August · June · July

75climate match

Beach

July

July · August · June

51climate match

Outdoors

September

September · May · June

74climate match

The weakest month is January, scoring 5 against August’s 75 — days reach only -0.3°C, 24° below the 24°C the score treats as ideal.

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

5-0.3° / -10.3°

Feb

50.5° / -10.3°

Mar

55.5° / -6.6°

Apr

2213.2° / -0.9°

May

5620.3° / 5.3°

Jun

7424.3° / 10.3°

Jul

7126.7° / 12.8°

Aug

7525.6° / 12.2°

Sep

7022.3° / 8.8°

Oct

3315° / 3.3°

Nov

68.2° / -2.5°

Dec

52.3° / -5.9°

Monthly climate evidence for Andover — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-0.3°C	-10.3°C	70 mm	11	9 h 25	5	Good coverage
February	0.5°C	-10.3°C	47 mm	7.9	10 h 30	5	Good coverage
March	5.5°C	-6.6°C	64 mm	9.3	11 h 48	5	Good coverage
April	13.2°C	-0.9°C	90 mm	10.2	13 h 18	22	Good coverage
May	20.3°C	5.3°C	92 mm	10.3	14 h 33	56	Good coverage
June	24.3°C	10.3°C	103 mm	10.6	15 h 14	74	Good coverage
July	26.7°C	12.8°C	107 mm	9.3	14 h 58	71	Good coverage
August	25.6°C	12.2°C	102 mm	8.9	13 h 53	75	Good coverage
September	22.3°C	8.8°C	91 mm	9.3	12 h 26	70	Good coverage
October	15°C	3.3°C	100 mm	10.6	10 h 59	33	Good coverage
November	8.2°C	-2.5°C	68 mm	9.6	9 h 44	6	Good coverage
December	2.3°C	-5.9°C	70 mm	10.1	9 h 07	5	Good coverage

Records at WELLSVILLE, 1980–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.8°C9 Jan 2008	-28.3°C29 Jan 2005	54 mm13 Jan 2018	129 mm2005 · driest 17 mm in 2025	22
February	22.2°C25 Feb 2017	-31.1°C17 Feb 2015	48 mm18 Feb 2022	108 mm2022 · driest 17 mm in 2012	23
March	25.0°C23 Mar 2012	-30.0°C1 Mar 2015	41 mm16 Mar 2007	124 mm2008 · driest 21 mm in 2019	23
April	30.6°C28 Apr 2009	-15.0°C6 Apr 2016	50 mm30 Apr 2021	229 mm2011 · driest 39 mm in 2009	23
May	35.6°C23 May 1980	-6.1°C18 May 2014	58 mm14 May 2011	231 mm2011 · driest 27 mm in 2005	24
June	33.3°C24 Jun 2025	-1.1°C13 Jun 2020	56 mm4 Jun 2021	157 mm2021 · driest 52 mm in 2005	23
July	37.8°C23 Jul 2011	3.3°C2 Jul 2007	64 mm25 Jul 2022	181 mm2021 · driest 13 mm in 2011	23
August	32.8°C13 Aug 2025	3.9°C30 Aug 2025	77 mm31 Aug 2005	190 mm2005 · driest 38 mm in 2017	22
September	32.2°C4 Sep 2011	-2.2°C22 Sep 2020	89 mm30 Sep 2015	158 mm2015 · driest 35 mm in 2025	22
October	29.4°C2 Oct 2019	-7.2°C14 Oct 2012	66 mm1 Oct 2010	211 mm2016 · driest 19 mm in 2022	22
November	23.9°C1 Nov 2024	-19.4°C23 Nov 2018	64 mm12 Nov 2022	120 mm2018 · driest 18 mm in 2012	22
December	19.4°C5 Dec 2012	-22.2°C20 Dec 2004	46 mm1 Dec 2010	174 mm2012 · driest 26 mm in 2017	22

Typical days per month at WELLSVILLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	2	10
February	0	0	27	2	8
March	<1	0	26	2	5
April	2	<1	19	3	2
May	7	1	7	3	<1
June	14	4	<1	4	0
July	23	6	0	4	0
August	19	3	0	4	0
September	9	2	<1	3	0
October	2	0	10	4	<1
November	0	0	23	2	3
December	0	0	28	3	8

How often, not how much — every day in WELLSVILLE’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	0%	30%	5%	38%	-3.2–2.8°C
February	<1%	27%	5%	29%	-2.5–4.6°C
March	3%	29%	6%	37%	2.5–10.1°C
April	14%	34%	9%	42%	10.8–16.6°C
May	38%	34%	9%	44%	18.0–22.4°C
June	55%	34%	12%	43%	22.9–25.7°C
July	67%	30%	12%	34%	24.9–28.6°C
August	67%	28%	9%	31%	24.0–27.2°C
September	53%	30%	9%	39%	21.4–23.6°C
October	17%	31%	8%	42%	13.7–17.7°C
November	3%	32%	6%	41%	5.1–10.8°C
December	0%	33%	6%	41%	-0.6–6.0°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.

2005Each stripe is one year’s mean temperature against the 21-year average. Warmest: 2024. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5107176
NOAA station: USC00309072 · WELLSVILLE
Station distance: 13.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 42.16°, 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 WELLSVILLE is what differs

Wellsville→Stannards→Scio→Alice→Barney Mills→Elm Valley→

Or put two places side by side: Andover vs Wellsville

Best time to visitAndover.