United States · 1991–2020

Best time to visit
Martell.

October leads for comfortable weather in Martell: typically 24.7°C by day, 11.6°C at night, with 47 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high24.7°C

Typical low11.6°C

Rain in October47 mm

Comfort

October

October · May · September

90climate match

Beach

September

September · June · August

80climate match

Outdoors

April

April · May · October

83climate match

The weakest month is January, scoring 23 against October’s 90 — days reach only 12.9°C, 11° 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

2312.9° / 3.9°

Feb

2714.2° / 4.8°

Mar

4416.8° / 5.9°

Apr

6219.5° / 7.2°

May

8824.4° / 10.3°

Jun

7730.7° / 14.3°

Jul

6234.2° / 17.3°

Aug

6633.4° / 16.8°

Sep

7930.3° / 15.2°

Oct

9024.7° / 11.6°

Nov

5517.4° / 7°

Dec

2312.9° / 4°

Monthly climate evidence for Martell — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	12.9°C	3.9°C	140 mm	9.3	9 h 46	23	Good coverage
February	14.2°C	4.8°C	153 mm	9.9	10 h 42	27	Good coverage
March	16.8°C	5.9°C	112 mm	8.4	11 h 50	44	Good coverage
April	19.5°C	7.2°C	79 mm	6.1	13 h 08	62	Good coverage
May	24.4°C	10.3°C	41 mm	4.3	14 h 14	88	Good coverage
June	30.7°C	14.3°C	7 mm	0.7	14 h 49	77	Good coverage
July	34.2°C	17.3°C	0 mm	0.1	14 h 35	62	Good coverage
August	33.4°C	16.8°C	1 mm	0.2	13 h 39	66	Good coverage
September	30.3°C	15.2°C	7 mm	0.9	12 h 23	79	Good coverage
October	24.7°C	11.6°C	47 mm	3	11 h 08	90	Good coverage
November	17.4°C	7°C	75 mm	6.3	10 h 02	55	Good coverage
December	12.9°C	4°C	143 mm	9.5	9 h 30	23	Good coverage

Records at SUTTER HILL CDF, 1968–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	24.4°C26 Jan 2014	-5.0°C6 Jan 2007	94 mm23 Jan 2017	383 mm2017 · driest 0 mm in 2015	22
February	23.3°C22 Feb 2002	-4.4°C25 Feb 2023	55 mm9 Feb 1999	309 mm2000 · driest 2 mm in 2016	21
March	30.6°C25 Mar 2026	-4.4°C2 Mar 2023	74 mm14 Mar 2016	244 mm2011 · driest 1 mm in 2026	26
April	33.3°C28 Apr 2004	-3.9°C4 Apr 2023	62 mm7 Apr 2018	234 mm2006 · driest 3 mm in 2008	26
May	37.8°C17 May 2008	-0.6°C16 May 1999	37 mm21 May 2002	139 mm2019 · driest 0 mm in 2025	27
June	41.7°C19 Jun 2021	5.0°C7 Jun 2000	23 mm6 Jun 2011	69 mm2011 · driest 0 mm in 2021	24
July	43.3°C23 Jul 2006	5.6°C20 Jul 1999	3 mm23 Jul 2012	3 mm2012 · driest 0 mm in 2021	27
August	42.2°C29 Aug 2017	8.3°C29 Aug 2010	6 mm3 Aug 2003	14 mm2003 · driest 0 mm in 2014	25
September	41.7°C3 Sep 2017	6.1°C30 Sep 2019	22 mm22 Sep 2013	31 mm2019 · driest 0 mm in 2025	21
October	37.2°C1 Oct 2001	-2.8°C10 Oct 2008	137 mm25 Oct 2021	206 mm2021 · driest 0 mm in 2002	26
November	31.7°C6 Nov 2010	-2.2°C26 Nov 2006	61 mm15 Nov 2025	214 mm2025 · driest 12 mm in 2009	24
December	21.1°C8 Dec 2020	-6.7°C20 Dec 1998	79 mm11 Dec 2022	297 mm2005 · driest 0 mm in 2011	25

Typical days per month at SUTTER HILL CDF, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	4	5
February	0	0	2	5
March	<1	0	<1	3
April	4	<1	<1	2
May	13	5	0	2
June	22	15	0	<1
July	27	24	0	0
August	27	24	0	0
September	22	16	0	<1
October	14	4	<1	1
November	2	0	<1	3
December	0	0	4	5

How often, not how much — every day in SUTTER HILL CDF’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	3%	29%	15%	38%	10.7–15.2°C
February	10%	30%	14%	38%	12.0–15.6°C
March	25%	27%	13%	30%	13.4–20.3°C
April	43%	20%	9%	21%	17.0–22.2°C
May	78%	12%	4%	10%	21.2–26.5°C
June	96%	3%	<1%	1%	28.5–32.1°C
July	100%	<1%	0%	0%	32.4–36.2°C
August	99%	1%	<1%	<1%	32.1–35.1°C
September	95%	4%	<1%	1%	28.9–31.3°C
October	80%	10%	5%	8%	22.4–27.3°C
November	26%	22%	10%	27%	14.6–19.4°C
December	2%	29%	15%	37%	11.1–13.9°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5370801
NOAA station: USC00048713 · SUTTER HILL CDF
Station distance: 1.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 38.37°, 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 SUTTER HILL CDF is what differs

Jackson→Sutter Creek→Pine Grove→Plymouth→Mokelumne Hill→Fiddletown→

Or put two places side by side: Martell vs Jackson

Best time to visitMartell.