United States · 1991–2020

Best time to visit
Casco.

August leads for comfortable weather in Casco: typically 25.8°C by day, 14.7°C at night, with 96 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.8°C

Typical low14.7°C

Rain in August96 mm

Comfort

August

August · July · September

80climate match

Beach

July

July · August · September

58climate match

Outdoors

September

September · May · June

78climate match

The weakest month is January, scoring 5 against August’s 80 — days reach only -1.8°C, 26° 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

5-1.8° / -10.7°

Feb

5-0.5° / -10°

Mar

54.1° / -5.7°

Apr

1711.5° / 0.9°

May

4917.9° / 7°

Jun

6822.7° / 11.9°

Jul

7626.2° / 15.6°

Aug

8025.8° / 14.7°

Sep

6921.4° / 10.2°

Oct

2513.8° / 4.2°

Nov

57.2° / -1.5°

Dec

51.3° / -6.8°

Monthly climate evidence for Casco — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-1.8°C	-10.7°C	74 mm	8.6	9 h 14	5	Good coverage
February	-0.5°C	-10°C	81 mm	7.8	10 h 24	5	Good coverage
March	4.1°C	-5.7°C	92 mm	8.1	11 h 47	5	Good coverage
April	11.5°C	0.9°C	112 mm	9.3	13 h 22	17	Good coverage
May	17.9°C	7°C	101 mm	10.9	14 h 43	49	Good coverage
June	22.7°C	11.9°C	137 mm	11.6	15 h 28	68	Good coverage
July	26.2°C	15.6°C	102 mm	9.8	15 h 10	76	Good coverage
August	25.8°C	14.7°C	96 mm	8.9	14 h 00	80	Good coverage
September	21.4°C	10.2°C	101 mm	7.7	12 h 27	69	Good coverage
October	13.8°C	4.2°C	151 mm	9.8	10 h 55	25	Good coverage
November	7.2°C	-1.5°C	113 mm	9.1	9 h 34	5	Good coverage
December	1.3°C	-6.8°C	109 mm	9.8	8 h 54	5	Good coverage

Records at POLAND, 2001–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.7°C9 Jan 2008	-26.7°C16 Jan 2004	67 mm10 Jan 2024	143 mm2024 · driest 9 mm in 2004	25
February	18.9°C22 Feb 2018	-28.3°C4 Feb 2023	82 mm26 Feb 2010	182 mm2008 · driest 12 mm in 2024	25
March	28.3°C23 Mar 2012	-21.1°C6 Mar 2007	64 mm7 Mar 2011	262 mm2024 · driest 29 mm in 2006	25
April	32.2°C29 Apr 2009	-10.0°C4 Apr 2016	77 mm3 Apr 2005	259 mm2005 · driest 52 mm in 2003	25
May	32.8°C26 May 2010	-1.1°C9 May 2020	107 mm1 May 2023	205 mm2006 · driest 23 mm in 2008	25
June	35.6°C25 Jun 2025	1.7°C1 Jun 2020	114 mm3 Jun 2012	335 mm2012 · driest 16 mm in 2021	25
July	34.4°C24 Jul 2011	7.2°C5 Jul 2021	67 mm29 Jul 2022	290 mm2021 · driest 37 mm in 2002	25
August	35.6°C16 Aug 2002	6.7°C21 Aug 2025	104 mm14 Aug 2014	235 mm2023 · driest 16 mm in 2001	25
September	35.0°C3 Sep 2010	0.0°C27 Sep 2009	109 mm7 Sep 2008	257 mm2008 · driest 28 mm in 2014	25
October	27.8°C7 Oct 2025	-5.0°C31 Oct 2020	132 mm9 Oct 2005	380 mm2005 · driest 32 mm in 2013	25
November	23.3°C7 Nov 2024	-16.7°C22 Nov 2018	95 mm26 Nov 2008	203 mm2018 · driest 30 mm in 2012	25
December	18.3°C7 Dec 2001	-23.3°C28 Dec 2017	79 mm13 Dec 2010	239 mm2023 · driest 56 mm in 2001	25

Typical days per month at POLAND, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	3	8
February	0	0	28	3	8
March	<1	0	27	3	5
April	<1	<1	13	4	2
May	4	<1	<1	4	<1
June	12	3	0	4	0
July	22	6	0	4	0
August	20	4	0	3	0
September	7	1	<1	3	0
October	<1	0	7	4	<1
November	0	0	21	4	2
December	0	0	29	4	7

How often, not how much — every day in POLAND’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%	29%	8%	33%	-4.5–1.1°C
February	0%	27%	9%	32%	-2.7–1.7°C
March	1%	28%	10%	33%	2.0–6.7°C
April	8%	33%	12%	45%	9.3–13.4°C
May	31%	34%	11%	43%	15.8–19.9°C
June	52%	38%	13%	51%	21.1–24.1°C
July	66%	32%	12%	39%	24.4–27.7°C
August	68%	29%	11%	32%	24.3–27.0°C
September	48%	26%	9%	31%	20.0–22.8°C
October	11%	31%	13%	39%	12.3–15.8°C
November	2%	30%	12%	37%	5.2–9.7°C
December	0%	32%	12%	39%	-1.5–4.0°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.

2002Each stripe is one year’s mean temperature against the 24-year average. Warmest: 2010. Coolest: 2019.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4960358
NOAA station: USC00176856 · POLAND
Station distance: 12.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 44.01°, 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 POLAND is what differs

New Gloucester→Poland→Mechanic Falls→Oxford→Caldwell Corner→Cobb Cove→

Or put two places side by side: Casco vs New Gloucester

Best time to visitCasco.