United States · 1991–2020

Best time to visit
Frosts (historical).

July leads for comfortable weather in Frosts (historical): typically 23.5°C by day, 11.4°C at night, with 7 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high23.5°C

Typical low11.4°C

Rain in July7 mm

Comfort

July

July · August · September

92climate match

Beach

July

July · August · September

56climate match

Outdoors

September

September · August · June

93climate match

The weakest month is January, scoring 5 against July’s 92 — days reach only 2.7°C, 21° 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

52.7° / -4.3°

Feb

52.8° / -4.9°

Mar

55.4° / -3.7°

Apr

57.9° / -2.2°

May

3212.4° / 1.9°

Jun

6618.2° / 6.5°

Jul

9223.5° / 11.4°

Aug

8922.9° / 11.1°

Sep

7018.9° / 8°

Oct

3312.2° / 2.8°

Nov

55.9° / -1.7°

Dec

52° / -4.7°

Monthly climate evidence for Frosts (historical) — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.7°C	-4.3°C	181 mm	12.9	9 h 42	5	Strong coverage
February	2.8°C	-4.9°C	168 mm	12.9	10 h 40	5	Strong coverage
March	5.4°C	-3.7°C	159 mm	13.1	11 h 50	5	Strong coverage
April	7.9°C	-2.2°C	85 mm	10.8	13 h 10	5	Strong coverage
May	12.4°C	1.9°C	55 mm	7.3	14 h 17	32	Strong coverage
June	18.2°C	6.5°C	21 mm	2.8	14 h 53	66	Strong coverage
July	23.5°C	11.4°C	7 mm	1.3	14 h 39	92	Strong coverage
August	22.9°C	11.1°C	10 mm	2.5	13 h 41	89	Strong coverage
September	18.9°C	8°C	18 mm	3.3	12 h 24	70	Strong coverage
October	12.2°C	2.8°C	60 mm	6	11 h 06	33	Strong coverage
November	5.9°C	-1.7°C	99 mm	9.9	9 h 59	5	Strong coverage
December	2°C	-4.7°C	181 mm	13	9 h 27	5	Strong coverage

Records at Rubicon #2, 1990–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.8°C27 Jan 2019	-17.6°C13 Jan 2007	158 mm1 Jan 1997	673 mm2017 · driest 3 mm in 2015	36
February	15.9°C12 Feb 2015	-16.7°C26 Feb 2011	86 mm4 Feb 1996	460 mm2019 · driest 3 mm in 2020	36
March	18.6°C14 Mar 1994	-15.0°C26 Mar 1995	86 mm27 Mar 2005	457 mm1995 · driest 20 mm in 2015	36
April	19.8°C22 Apr 2012	-15.2°C9 Apr 1999	58 mm16 Apr 2006	221 mm2003 · driest 10 mm in 2008	36
May	26.4°C31 May 2001	-9.6°C22 May 2010	51 mm31 May 1993	140 mm1996 · driest 3 mm in 2001	36
June	28.9°C28 Jun 2021	-5.9°C5 Jun 2012	36 mm4 Jun 1997	89 mm1997 · driest 0 mm in 2008	36
July	32.4°C11 Jul 2002	-0.6°C1 Jul 1997	33 mm13 Jul 2026	46 mm1998 · driest 0 mm in 1993	36
August	31.6°C13 Aug 1998	0.0°C31 Aug 1999	18 mm21 Aug 2003	61 mm2003 · driest 0 mm in 2000	36
September	30.4°C6 Sep 2022	-4.4°C29 Sep 2019	33 mm26 Sep 2014	99 mm1998 · driest 0 mm in 2020	36
October	25.6°C8 Oct 1996	-11.8°C17 Oct 1994	163 mm24 Oct 2021	300 mm2016 · driest 0 mm in 1995	36
November	19.5°C3 Nov 2010	-14.4°C24 Nov 2010	97 mm16 Nov 2017	244 mm1994 · driest 15 mm in 1992	36
December	12.9°C15 Dec 2013	-20.7°C20 Dec 1990	119 mm31 Dec 2022	531 mm1996 · driest 5 mm in 2011	36

Typical days per month at Rubicon #2, 1991–2020
Month	Days 25°C+	Frost nights	Heavy rain (10 mm+)
January	0	26	6
February	0	24	5
March	0	25	5
April	0	20	3
May	<1	10	2
June	2	2	<1
July	10	0	<1
August	8	0	<1
September	1	1	<1
October	0	8	2
November	0	19	3
December	0	26	5

How often, not how much — every day in Rubicon #2’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%	39%	17%	50%	0.1–5.2°C
February	0%	44%	19%	58%	0.3–6.3°C
March	0%	43%	17%	55%	2.7–8.6°C
April	0%	35%	8%	45%	6.0–9.5°C
May	7%	22%	5%	24%	9.0–14.8°C
June	45%	10%	3%	6%	15.0–21.0°C
July	82%	4%	<1%	3%	21.3–25.1°C
August	78%	9%	<1%	6%	21.1–24.5°C
September	47%	13%	3%	13%	16.4–20.6°C
October	7%	20%	6%	25%	10.0–15.1°C
November	0%	36%	13%	48%	3.5–8.2°C
December	0%	40%	17%	53%	0.2–4.8°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.

1993Each stripe is one year’s mean temperature against the 30-year average. Warmest: 2014. Coolest: 1998.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5351122
NOAA station: USS0020L02S · Rubicon #2
Station distance: 2.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 39.00°, 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 Rubicon #2 is what differs

Tahoma→Chamberlands Estates→Chambers Lodge→Emerald Bay→Glenridge Park→Meeks Bay→

Or put two places side by side: Frosts (historical) vs Tahoma

Best time to visitFrosts (historical).

July

July

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Frosts (historical).

The whole year,
without the guesswork.

Nearby, measured,
and named.