United States · 1991–2020

Best time to visit
Lake Monticello.

September leads for comfortable weather in Lake Monticello: typically 24.6°C by day, 13.7°C at night, with 133 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.6°C

Typical low13.7°C

Rain in September133 mm

Comfort

September

September · May · June

78climate match

Beach

August

August · July · June

73climate match

Outdoors

April

April · October · May

80climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 7°C, 17° 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

57° / -3.4°

Feb

118.8° / -2.6°

Mar

2713.7° / 1.3°

Apr

6019.9° / 6.8°

May

7423.5° / 11.8°

Jun

6727.8° / 16.6°

Jul

5329.8° / 18.7°

Aug

6728.7° / 17.6°

Sep

7824.6° / 13.7°

Oct

5819° / 7.9°

Nov

3614° / 2.7°

Dec

108.8° / -1.2°

Monthly climate evidence for Lake Monticello — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7°C	-3.4°C	76 mm	6.3	9 h 48	5	Strong coverage
February	8.8°C	-2.6°C	65 mm	5.9	10 h 43	11	Strong coverage
March	13.7°C	1.3°C	105 mm	8.3	11 h 50	27	Good coverage
April	19.9°C	6.8°C	84 mm	8.1	13 h 07	60	Good coverage
May	23.5°C	11.8°C	117 mm	10.8	14 h 12	74	Good coverage
June	27.8°C	16.6°C	118 mm	9.8	14 h 47	67	Strong coverage
July	29.8°C	18.7°C	140 mm	10	14 h 33	53	Strong coverage
August	28.7°C	17.6°C	100 mm	7.4	13 h 38	67	Good coverage
September	24.6°C	13.7°C	133 mm	7.5	12 h 23	78	Good coverage
October	19°C	7.9°C	102 mm	6.6	11 h 09	58	Good coverage
November	14°C	2.7°C	80 mm	5.8	10 h 04	36	Good coverage
December	8.8°C	-1.2°C	89 mm	6.6	9 h 33	10	Good coverage

Records at MONTICELLO, 1982–2016
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.2°C30 Jan 2002	-23.3°C21 Jan 1985	88 mm13 Jan 2005	169 mm1999 · driest 10 mm in 1983	34
February	26.1°C25 Feb 1985	-17.2°C4 Feb 1996	66 mm14 Feb 1984	179 mm2003 · driest 9 mm in 1988	34
March	31.7°C30 Mar 1998	-12.8°C7 Mar 2015	86 mm27 Mar 1994	209 mm1993 · driest 3 mm in 2006	33
April	36.7°C17 Apr 2002	-5.6°C10 Apr 1985	76 mm21 Apr 1992	228 mm1983 · driest 18 mm in 1988	33
May	36.1°C13 May 2000	2.2°C21 May 2002	114 mm16 May 2014	245 mm1990 · driest 31 mm in 1997	33
June	36.7°C22 Jun 1988	4.4°C9 Jun 2000	58 mm6 Jun 1989	220 mm2006 · driest 19 mm in 1999	34
July	37.8°C9 Jul 2012	6.7°C4 Jul 2001	151 mm21 Jul 1984	340 mm1991 · driest 14 mm in 1987	34
August	37.2°C17 Aug 1988	7.2°C30 Aug 1986	97 mm28 Aug 2008	220 mm2003 · driest 21 mm in 1993	33
September	36.1°C16 Sep 1991	2.2°C30 Sep 1993	159 mm18 Sep 2003	365 mm1987 · driest 9 mm in 2007	34
October	31.1°C2 Oct 1986	-3.3°C28 Oct 2001	115 mm7 Oct 2005	255 mm1990 · driest 0 mm in 2000	34
November	30.0°C2 Nov 2003	-8.9°C19 Nov 2014	106 mm27 Nov 1993	200 mm2009 · driest 8 mm in 2001	33
December	26.7°C7 Dec 1998	-20.0°C26 Dec 1983	55 mm9 Dec 2009	177 mm2009 · driest 12 mm in 1987	34

Typical days per month at MONTICELLO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	3	2
February	0	0	20	2	2
March	2	<1	13	4	<1
April	7	1	2	3	<1
May	14	4	0	4	0
June	24	10	0	4	0
July	29	16	0	4	0
August	27	11	0	4	0
September	15	4	0	4	0
October	4	<1	<1	3	0
November	<1	0	9	3	0
December	<1	0	20	3	1

How often, not how much — every day in MONTICELLO’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%	20%	8%	16%	4.0–9.9°C
February	4%	22%	9%	21%	6.0–11.6°C
March	16%	27%	12%	28%	10.5–16.2°C
April	38%	28%	11%	32%	17.3–21.5°C
May	53%	35%	14%	41%	21.4–25.4°C
June	70%	29%	13%	33%	26.6–29.6°C
July	68%	32%	13%	34%	28.3–31.5°C
August	75%	25%	13%	27%	26.5–30.4°C
September	68%	25%	12%	25%	23.1–26.6°C
October	40%	23%	11%	22%	17.2–21.2°C
November	15%	22%	11%	15%	11.0–17.3°C
December	3%	21%	9%	15%	5.9–11.7°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.

1983Each stripe is one year’s mean temperature against the 29-year average. Warmest: 1990. Coolest: 2003.2015

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4768313
NOAA station: USC00445700 · MONTICELLO
Station distance: 14.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 37.92°, 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 MONTICELLO is what differs

Charlottesville→Pantops→Ashcroft→Ashmere→Belmont→Campbell→

Or put two places side by side: Lake Monticello vs Charlottesville

Best time to visitLake Monticello.