United States · 1991–2020

Best time to visit
Byron.

September leads for comfortable weather in Byron: typically 24.4°C by day, 11.8°C at night, with 92 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.4°C

Typical low11.8°C

Rain in September92 mm

Comfort

September

September · August · June

80climate match

Beach

August

August · July · June

60climate match

Outdoors

October

October · September · May

70climate match

The weakest month is January, scoring 5 against September’s 80 — days reach only 4.5°C, 19° 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

54.5° / -5.8°

Feb

56.7° / -4.5°

Mar

1311.9° / -1.1°

Apr

4218.5° / 3.7°

May

6422.6° / 8.9°

Jun

7426.1° / 13.3°

Jul

6727.2° / 15.4°

Aug

7527° / 15.1°

Sep

8024.4° / 11.8°

Oct

5018° / 5.2°

Nov

2112.1° / -0.7°

Dec

56.6° / -3.4°

Monthly climate evidence for Byron — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.5°C	-5.8°C	87 mm	12.7	9 h 51	5	Good coverage
February	6.7°C	-4.5°C	85 mm	11.4	10 h 46	5	Good coverage
March	11.9°C	-1.1°C	104 mm	12.4	11 h 51	13	Good coverage
April	18.5°C	3.7°C	114 mm	11.8	13 h 06	42	Good coverage
May	22.6°C	8.9°C	120 mm	12.3	14 h 09	64	Good coverage
June	26.1°C	13.3°C	100 mm	10.7	14 h 42	74	Good coverage
July	27.2°C	15.4°C	133 mm	11.8	14 h 29	67	Good coverage
August	27°C	15.1°C	91 mm	10.5	13 h 35	75	Good coverage
September	24.4°C	11.8°C	92 mm	7.9	12 h 22	80	Good coverage
October	18°C	5.2°C	85 mm	9	11 h 10	50	Good coverage
November	12.1°C	-0.7°C	75 mm	9	10 h 07	21	Good coverage
December	6.6°C	-3.4°C	93 mm	12	9 h 37	5	Good coverage

Records at BLUEFIELD, 1998–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.8°C31 Jan 2002	-22.8°C31 Jan 2014	53 mm31 Jan 2013	170 mm2013 · driest 45 mm in 2015	26
February	25.0°C22 Feb 2018	-25.0°C20 Feb 2015	55 mm22 Feb 2015	192 mm2019 · driest 25 mm in 2002	26
March	29.4°C29 Mar 2020	-15.6°C4 Mar 2009	61 mm25 Mar 2018	210 mm2011 · driest 42 mm in 2016	26
April	31.1°C30 Apr 2017	-8.3°C8 Apr 2007	55 mm16 Apr 2018	213 mm2020 · driest 33 mm in 2001	25
May	31.7°C31 May 2006	-2.8°C20 May 2002	70 mm3 May 2002	235 mm2023 · driest 45 mm in 2015	26
June	35.0°C30 Jun 2012	2.2°C2 Jun 2003	61 mm13 Jun 2010	192 mm2006 · driest 13 mm in 1999	24
July	35.6°C1 Jul 2012	7.2°C5 Jul 2014	75 mm9 Jul 2001	247 mm2022 · driest 58 mm in 2011	25
August	35.6°C25 Aug 2007	6.1°C7 Aug 2004	64 mm10 Aug 2014	183 mm2014 · driest 18 mm in 2007	25
September	35.0°C7 Sep 2007	0.0°C18 Sep 2000	77 mm11 Sep 2018	287 mm2018 · driest 7 mm in 2019	25
October	32.2°C4 Oct 2019	-7.2°C29 Oct 2001	74 mm24 Oct 2017	161 mm2014 · driest 8 mm in 2000	24
November	26.7°C3 Nov 2003	-15.0°C22 Nov 2008	64 mm19 Nov 2003	159 mm2003 · driest 13 mm in 2001	25
December	23.9°C6 Dec 2001	-21.7°C24 Dec 2022	57 mm1 Dec 2010	151 mm2009 · driest 29 mm in 2017	26

Typical days per month at BLUEFIELD, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	3	6
February	<1	0	23	3	5
March	1	0	19	4	4
April	6	<1	9	4	<1
May	13	<1	2	4	0
June	19	3	0	3	0
July	25	6	0	4	0
August	24	5	0	3	0
September	15	3	<1	3	0
October	3	<1	7	3	<1
November	<1	0	19	3	1
December	0	0	24	3	5

How often, not how much — every day in BLUEFIELD’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%	40%	9%	59%	1.4–7.7°C
February	2%	41%	10%	64%	2.9–10.9°C
March	11%	39%	11%	54%	8.4–15.3°C
April	34%	38%	13%	48%	16.0–20.1°C
May	48%	39%	13%	54%	20.4–24.8°C
June	63%	35%	10%	44%	24.2–27.4°C
July	62%	37%	15%	57%	25.3–28.7°C
August	66%	33%	10%	42%	25.4–28.3°C
September	65%	26%	10%	30%	22.4–26.9°C
October	35%	28%	8%	35%	15.8–20.2°C
November	7%	30%	8%	40%	9.0–14.9°C
December	1%	39%	10%	57%	3.5–10.1°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 21-year average. Warmest: 2019. Coolest: 2014.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4750299
NOAA station: USC00460925 · BLUEFIELD
Station distance: 8.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 37.23°, 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 BLUEFIELD is what differs

Bluefield→Bluefield→Brush Fork→Bailey→Clear Fork→Falls Mills→

Or put two places side by side: Byron vs Bluefield

Best time to visitByron.