United States · 1991–2020

Best time to visit
Johnstown.

September leads for comfortable weather in Johnstown: typically 25.9°C by day, 7.6°C at night, with 35 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.9°C

Typical low7.6°C

Rain in September35 mm

Comfort

September

September · June · August

79climate match

Beach

August

August · July · June

70climate match

Outdoors

October

October · May · September

78climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 6.5°C, 17° below the 24°C the score treats as ideal, and nights drop to -9.9°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

56.5° / -9.9°

Feb

58.1° / -8.3°

Mar

3013.6° / -4°

Apr

4316.8° / -0.2°

May

6521.7° / 5.2°

Jun

7428.1° / 10.1°

Jul

7131.2° / 13.4°

Aug

7330.2° / 12.2°

Sep

7925.9° / 7.6°

Oct

5518.3° / 0.9°

Nov

2311.7° / -5.1°

Dec

56.3° / -9.8°

Monthly climate evidence for Johnstown — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.5°C	-9.9°C	12 mm	2.5	9 h 35	5	Strong coverage
February	8.1°C	-8.3°C	17 mm	4.1	10 h 36	5	Strong coverage
March	13.6°C	-4°C	32 mm	4.4	11 h 49	30	Strong coverage
April	16.8°C	-0.2°C	52 mm	6.6	13 h 13	43	Strong coverage
May	21.7°C	5.2°C	68 mm	8.3	14 h 23	65	Strong coverage
June	28.1°C	10.1°C	42 mm	5.6	15 h 02	74	Strong coverage
July	31.2°C	13.4°C	38 mm	5.6	14 h 47	71	Strong coverage
August	30.2°C	12.2°C	33 mm	4.7	13 h 46	73	Strong coverage
September	25.9°C	7.6°C	35 mm	4.9	12 h 25	79	Strong coverage
October	18.3°C	0.9°C	31 mm	4.2	11 h 04	55	Strong coverage
November	11.7°C	-5.1°C	20 mm	3.8	9 h 53	23	Strong coverage
December	6.3°C	-9.8°C	13 mm	2.8	9 h 18	5	Strong coverage

Records at LOVELAND 2N, 1989–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.3°C27 Jan 2015	-31.1°C16 Jan 2024	20 mm31 Jan 2014	46 mm2014 · driest 0 mm in 2020	33
February	23.9°C11 Feb 2017	-30.0°C3 Feb 1996	32 mm4 Feb 2024	45 mm2024 · driest 1 mm in 1992	34
March	33.3°C26 Mar 2026	-25.0°C5 Mar 2019	53 mm6 Mar 1990	116 mm1990 · driest 0 mm in 2012	34
April	31.7°C13 Apr 2025	-15.6°C17 Apr 2020	59 mm24 Apr 1997	125 mm2009 · driest 3 mm in 2022	33
May	36.7°C29 May 2000	-12.2°C3 May 2013	61 mm19 May 2017	173 mm1995 · driest 9 mm in 2024	33
June	39.4°C27 Jun 2012	1.1°C6 Jun 1998	67 mm20 Jun 1994	136 mm2023 · driest 3 mm in 2006	34
July	41.1°C19 Jul 2022	5.6°C4 Jul 1993	50 mm22 Jul 1991	77 mm1991 · driest 11 mm in 2017	34
August	39.4°C15 Aug 2025	3.3°C27 Aug 1992	40 mm26 Aug 2006	106 mm2023 · driest 2 mm in 2012	33
September	39.4°C3 Sep 2019	-3.9°C22 Sep 1995	59 mm12 Sep 2013	168 mm2013 · driest 0 mm in 1992	34
October	32.2°C3 Oct 2024	-22.2°C27 Oct 2020	38 mm16 Oct 1998	87 mm1998 · driest 4 mm in 2021	34
November	27.2°C17 Nov 2016	-26.1°C25 Nov 1993	34 mm26 Nov 2019	55 mm2019 · driest 1 mm in 2025	33
December	23.9°C23 Dec 2025	-35.0°C22 Dec 1990	24 mm29 Dec 2006	40 mm2007 · driest 1 mm in 1991	32

Typical days per month at LOVELAND 2N, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	<1	4
February	0	0	27	<1	5
March	1	0	26	1	3
April	4	<1	16	2	3
May	11	3	3	2	<1
June	23	12	0	1	0
July	29	21	0	1	0
August	28	18	0	<1	0
September	19	9	1	1	<1
October	6	<1	13	1	1
November	<1	0	27	<1	4
December	0	0	31	<1	4

How often, not how much — every day in LOVELAND 2N’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	<1%	9%	<1%	4%	3.1–8.9°C
February	3%	14%	<1%	9%	4.6–12.2°C
March	21%	15%	4%	10%	10.3–17.5°C
April	36%	21%	5%	18%	15.2–19.9°C
May	56%	26%	7%	30%	18.3–24.2°C
June	80%	18%	5%	15%	25.0–31.3°C
July	80%	18%	3%	18%	29.2–33.6°C
August	83%	16%	3%	12%	28.2–32.4°C
September	77%	16%	4%	12%	23.5–28.9°C
October	48%	13%	3%	7%	16.4–20.8°C
November	16%	12%	1%	7%	8.9–15.3°C
December	1%	9%	<1%	5%	2.9–9.8°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.

1990Each stripe is one year’s mean temperature against the 28-year average. Warmest: 2024. Coolest: 1993.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5578536
NOAA station: USC00055236 · LOVELAND 2N
Station distance: 18.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 40.34°, 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 LOVELAND 2N is what differs

Loveland→Berthoud→Campion→Berts Corner→Browns Corner→Buda→

Or put two places side by side: Johnstown vs Loveland

Best time to visitJohnstown.