United States · 1991–2020

Best time to visit
Mount Zion.

September leads for comfortable weather in Mount Zion: typically 26.7°C by day, 13.2°C at night, with 78 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.7°C

Typical low13.2°C

Rain in September78 mm

Comfort

September

September · May · August

79climate match

Beach

August

August · July · June

77climate match

Outdoors

October

October · April · May

77climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 2.1°C, 22° 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

52.1° / -6.6°

Feb

54° / -5.5°

Mar

2311.3° / 0.2°

Apr

5118.4° / 5.8°

May

7723.8° / 11.9°

Jun

6428.7° / 17°

Jul

6230.1° / 18.7°

Aug

6929.4° / 17.3°

Sep

7926.7° / 13.2°

Oct

5818.9° / 6.9°

Nov

2511.4° / 1.1°

Dec

54.3° / -4°

Monthly climate evidence for Mount Zion — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.1°C	-6.6°C	46 mm	5.3	9 h 38	5	Good coverage
February	4°C	-5.5°C	47 mm	5.2	10 h 38	5	Good coverage
March	11.3°C	0.2°C	66 mm	7.9	11 h 49	23	Good coverage
April	18.4°C	5.8°C	96 mm	9	13 h 12	51	Good coverage
May	23.8°C	11.9°C	111 mm	10.3	14 h 21	77	Good coverage
June	28.7°C	17°C	115 mm	8.9	14 h 58	64	Good coverage
July	30.1°C	18.7°C	89 mm	7	14 h 43	62	Good coverage
August	29.4°C	17.3°C	78 mm	6.4	13 h 44	69	Good coverage
September	26.7°C	13.2°C	78 mm	6.2	12 h 24	79	Good coverage
October	18.9°C	6.9°C	84 mm	7.7	11 h 05	58	Good coverage
November	11.4°C	1.1°C	69 mm	6.9	9 h 56	25	Good coverage
December	4.3°C	-4°C	63 mm	6.7	9 h 22	5	Good coverage

Records at DECATUR AP, 2000–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.0°C7 Jan 2008	-26.6°C30 Jan 2019	37 mm11 Jan 2020	152 mm2005 · driest 5 mm in 2025	26
February	25.0°C27 Feb 2024	-23.2°C11 Feb 2014	73 mm24 Feb 2001	130 mm2008 · driest 3 mm in 2025	26
March	31.1°C26 Mar 2026	-22.7°C6 Mar 2015	52 mm30 Mar 2022	195 mm2026 · driest 12 mm in 2013	26
April	31.1°C30 Apr 2007	-11.0°C2 Apr 2018	64 mm27 Apr 2026	168 mm2013 · driest 34 mm in 2023	26
May	36.1°C28 May 2018	-1.7°C3 May 2005	94 mm12 May 2002	237 mm2002 · driest 27 mm in 2005	26
June	39.4°C29 Jun 2012	2.8°C1 Jun 2003	118 mm3 Jun 2008	242 mm2010 · driest 19 mm in 2012	26
July	40.0°C6 Jul 2012	7.8°C2 Jul 2001	77 mm24 Jul 2010	233 mm2008 · driest 15 mm in 2011	26
August	37.8°C12 Aug 2007	7.8°C16 Aug 2004	96 mm3 Aug 2022	288 mm2022 · driest 1 mm in 2013	25
September	38.3°C2 Sep 2011	1.7°C24 Sep 2012	127 mm14 Sep 2008	240 mm2008 · driest 1 mm in 2004	25
October	33.9°C8 Oct 2007	-4.9°C21 Oct 2018	63 mm24 Oct 2021	228 mm2009 · driest 14 mm in 2003	25
November	26.7°C1 Nov 2016	-14.9°C12 Nov 2019	76 mm4 Nov 2024	165 mm2024 · driest 16 mm in 2017	26
December	22.2°C3 Dec 2012	-25.6°C14 Dec 2025	70 mm26 Dec 2015	234 mm2015 · driest 3 mm in 2017	26

Typical days per month at DECATUR AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	26	2
February	0	0	24	1
March	<1	0	17	3
April	5	<1	5	3
May	15	5	<1	4
June	26	13	0	4
July	29	18	0	3
August	29	14	0	2
September	20	8	0	2
October	7	1	3	3
November	<1	0	14	2
December	0	0	24	2

How often, not how much — every day in DECATUR 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	0%	17%	5%	14%	-0.7–6.1°C
February	2%	17%	4%	12%	-0.8–8.1°C
March	11%	27%	9%	32%	8.4–16.4°C
April	32%	30%	11%	38%	16.3–21.0°C
May	54%	33%	11%	41%	21.6–26.5°C
June	72%	28%	11%	31%	27.2–30.0°C
July	76%	24%	10%	21%	28.0–32.0°C
August	79%	21%	8%	20%	27.6–31.3°C
September	75%	20%	8%	20%	24.7–28.8°C
October	37%	25%	9%	26%	17.0–22.1°C
November	9%	22%	7%	24%	7.8–14.2°C
December	<1%	21%	7%	21%	1.7–8.2°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.

2001Each stripe is one year’s mean temperature against the 25-year average. Warmest: 2012. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4245174
NOAA station: USW00003887 · DECATUR AP
Station distance: 6.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 39.77°, 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 DECATUR AP is what differs

Cerro Gordo→Long Creek→Argenta→Oreana→Chapin→Dalton City→

Or put two places side by side: Mount Zion vs Cerro Gordo

Best time to visitMount Zion.