United States · 1991–2020

Best time to visit
Nelson.

May leads for comfortable weather in Nelson: typically 25.3°C by day, 4°C at night, with 5 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high25.3°C

Typical low4°C

Rain in May5 mm

Comfort

May

May · October · September

76climate match

Beach

September

September · August · June

64climate match

Outdoors

April

April · October · May

83climate match

The weakest month is December, scoring 20 against May’s 76 — days reach only 11.2°C, 13° below the 24°C the score treats as ideal, and nights drop to -5.7°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

2211.6° / -5.1°

Feb

2512.5° / -4.8°

Mar

4416.5° / -2.5°

Apr

5919.9° / 0°

May

7625.3° / 4°

Jun

6331.7° / 8.4°

Jul

5733.2° / 13.2°

Aug

6231.7° / 12.2°

Sep

7229° / 8.3°

Oct

7422.9° / 2.7°

Nov

4416.6° / -2.4°

Dec

2011.2° / -5.7°

Monthly climate evidence for Nelson — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	11.6°C	-5.1°C	33 mm	3.7	10 h	22	Good coverage
February	12.5°C	-4.8°C	39 mm	4.2	10 h 50	25	Good coverage
March	16.5°C	-2.5°C	24 mm	3.2	11 h 52	44	Good coverage
April	19.9°C	0°C	18 mm	2.3	13 h 02	59	Good coverage
May	25.3°C	4°C	5 mm	1.1	14 h 01	76	Good coverage
June	31.7°C	8.4°C	4 mm	0.8	14 h 33	63	Good coverage
July	33.2°C	13.2°C	73 mm	7	14 h 20	57	Good coverage
August	31.7°C	12.2°C	61 mm	7.2	13 h 30	62	Good coverage
September	29°C	8.3°C	31 mm	3.1	12 h 21	72	Good coverage
October	22.9°C	2.7°C	33 mm	3.2	11 h 13	74	Good coverage
November	16.6°C	-2.4°C	20 mm	1.9	10 h 15	44	Good coverage
December	11.2°C	-5.7°C	30 mm	3.5	9 h 46	20	Good coverage

Records at DIAMOND M RCH, 1998–2019
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.2°C31 Jan 2018	-22.8°C1 Jan 2011	34 mm22 Jan 2010	128 mm2005 · driest 0 mm in 2014	21
February	25.0°C17 Feb 2016	-17.8°C11 Feb 2009	51 mm12 Feb 2005	132 mm2005 · driest 0 mm in 2002	21
March	28.9°C17 Mar 2007	-15.0°C1 Mar 2011	36 mm2 Mar 2015	96 mm2006 · driest 1 mm in 2016	21
April	31.7°C29 Apr 2007	-15.0°C1 Apr 2000	31 mm24 Apr 2005	59 mm1999 · driest 0 mm in 2013	21
May	36.7°C28 May 2003	-5.0°C13 May 2000	20 mm10 May 2017	24 mm2015 · driest 0 mm in 2002	20
June	41.1°C22 Jun 2017	-1.7°C13 Jun 2017	11 mm10 Jun 2015	27 mm2015 · driest 0 mm in 2007	20
July	41.1°C5 Jul 2007	5.6°C7 Jul 2005	63 mm15 Jul 2012	205 mm2017 · driest 8 mm in 2000	20
August	37.8°C10 Aug 2004	3.3°C31 Aug 2010	51 mm16 Aug 2007	119 mm2007 · driest 6 mm in 2002	20
September	36.7°C4 Sep 2010	-2.2°C23 Sep 2017	57 mm18 Sep 2004	97 mm2014 · driest 0 mm in 2005	20
October	35.0°C1 Oct 2010	-9.4°C12 Oct 2008	67 mm21 Oct 2004	165 mm2004 · driest 0 mm in 2003	20
November	28.3°C4 Nov 2009	-13.3°C30 Nov 2010	46 mm22 Nov 2004	107 mm2004 · driest 0 mm in 2009	21
December	24.4°C30 Dec 2017	-17.8°C31 Dec 2010	49 mm1 Dec 2007	85 mm2010 · driest 0 mm in 2017	21

Typical days per month at DIAMOND M RCH, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	1	2
February	0	0	26	2	2
March	1	0	26	<1	1
April	6	<1	17	<1	<1
May	18	6	5	<1	0
June	28	21	<1	<1	0
July	30	26	0	3	0
August	30	24	0	2	0
September	26	15	<1	1	0
October	14	2	8	1	0
November	2	0	23	<1	<1
December	0	0	29	1	2

How often, not how much — every day in DIAMOND M RCH’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	2%	12%	4%	9%	8.8–15.6°C
February	9%	15%	6%	17%	9.7–15.4°C
March	32%	10%	3%	5%	14.4–19.0°C
April	55%	8%	3%	5%	17.8–22.2°C
May	85%	4%	<1%	<1%	22.0–27.8°C
June	97%	3%	<1%	2%	28.8–33.4°C
July	77%	23%	8%	30%	31.5–34.7°C
August	77%	23%	7%	23%	30.2–33.4°C
September	88%	10%	4%	7%	27.5–31.1°C
October	70%	11%	3%	9%	20.1–25.1°C
November	32%	6%	2%	6%	13.3–20.1°C
December	4%	11%	4%	7%	8.9–13.4°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.

1999Each stripe is one year’s mean temperature against the 20-year average. Warmest: 2017. Coolest: 2011.2018

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5306372
NOAA station: USC00022527 · DIAMOND M RCH
Station distance: 24.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 35.51°, 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 DIAMOND M RCH is what differs

Peach Springs→Grand Canyon Caverns→Yampai→

Or put two places side by side: Nelson vs Peach Springs

Best time to visitNelson.

May

September

April

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Nelson.

The whole year,
without the guesswork.

Nearby, measured,
and named.