Henrietta weather in December

In December, Henrietta sees average daytime highs of 37°F and overnight lows near 26°F, with 3.0 in of precipitation across 11.8 wet days and about 8.9 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 40°F in the first days to 34°F by the end. The sky is clear or mostly clear about 7% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of December to 8 h 54 min by month's end. Set against the rest of the year, December is Henrietta's 11th-clearest and 2nd-windiest month. For the whole year in context, see Henrietta's year-round climate.

Daytime high
37°
10th warmest
Overnight low
26°
3rd coldest
Precipitation
3.0 in
11.8 wet days
Daylight
8 h 48 min
7:42 AM – 4:32 PM
Cloud cover
81%
11th clearest
Wind
8 mph
2nd windiest
Solar energy
1.27 kWh/m²
Travel score
0.0
out of 10

Henrietta is town in Monroe County, New York, United States of America.

Founded
1818

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 40°F in the first days to 34°F by the end.

A typical December day in Henrietta reaches about 37°F in the afternoon and slips back to 26°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 24°F and 50°F. Set against its neighbours, December runs about 10°F cooler than November and about 5°F warmer than January.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14130
24129
34029
44029
54028
63928
73928
83827
93827
103827
113726
123726
133726
143726
153726
163625
173625
183625
193625
203625
213525
223524
233524
243524
253524
263524
273524
283524
293423
303423
313423

How December really feels in Henrietta

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 31 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
31
3 feel bitter (≤ 14°F)

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Henrietta weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 19°2.711.810.19.20.0
Feb34° / 20°2.39.88.110.20.0
Mar42° / 27°3.111.8611.60.5
Apr56° / 38°3.8122.113.13.4
May67° / 49°3.412.5014.45.8
Jun76° / 58°3.712015.16.5
Jul80° / 63°3.812.6014.96.2
Aug78° / 61°3.311.7013.86.5
Sep72° / 54°3.310.1012.36.6
Oct59° / 44°3.712.30.110.84.3
Nov47° / 34°3.011.73.29.51.4
Dec37° / 26°3.011.88.58.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21981
31981
41981
51882
61882
71882
81882
91882
101882
111684
121684
131684
141684
151684
161684
171486
181486
191486
201486
211387
221387
231486
241387
251387
261387
271288
281288
291288
301387
311288

Chance of precipitation in December

Any precipitationSnow

Henrietta gets around 3.0 in of rain and snow over 11.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 39% and peaks near 41% on the wettest days, and about 9 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
14121
24121
34122
44023
54024
64025
74026
83927
93928
103929
113929
123930
133930
143930
153930
163930
173930
183930
193930
203829
213829
223828
233728
243727
253727
263727
273727
283727
293727
303827
313828

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 8 mph in December.

Across December, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 06 min at the start of December to 8 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:29 AM to 7:48 AM, and sunset from 4:32 PM to 4:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.17:294:32
29.07:304:32
39.07:314:31
49.07:324:31
59.07:334:31
69.07:344:31
78.97:344:31
88.97:354:31
98.97:364:31
108.97:374:31
118.97:384:31
128.97:394:31
138.97:394:31
148.87:404:31
158.87:414:31
168.87:424:32
178.87:424:32
188.87:434:32
198.87:434:33
208.87:444:33
218.87:454:33
228.87:454:34
238.87:454:34
248.87:464:35
258.87:464:35
268.87:474:36
278.87:474:37
288.87:474:37
298.87:474:38
308.87:484:39
318.97:484:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.27 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.27 kWh/m² to a high of 6.17 kWh/m² in June across the year — December's 1.27 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.3Dim
31.3Dim
41.3Dim
51.3Dim
61.3Dim
71.3Dim
81.3Dim
91.3Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.3Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.3Dim
231.3Dim
241.3Dim
251.3Dim
261.3Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in December

Is December a good time to visit Henrietta?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Henrietta.

What to pack for Henrietta in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Henrietta sees daytime highs around 37°F and nights near 26°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 12 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Henrietta in December

The nearest coast averages about 43°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 mi away) is warmest in August at about 72°F and coldest in March near 37°F.

It's comfortable for a long swim from Jul 16 to Sep 11 — about 1.9 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb37Bracing
Mar37Bracing
Apr38Bracing
May42Bracing
Jun56Bracing
Jul69Refreshing
Aug72Refreshing
Sep67Cool
Oct58Bracing
Nov49Bracing
Dec43Bracing

UV index in Henrietta in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Henrietta peaks around June 23 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Henrietta?

Henrietta sits at 43.1°N, 77.6°W, 600 ft above sea level, in United States. The nearest listed city is Rochester, 6.8 mi away.

Topography around Henrietta

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Henrietta.

Within 2 miles, the terrain around Henrietta has only modest variations in elevation — a maximum elevation change of 253 ft around an average of 591 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 807 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,067 ft.

The land around Henrietta is covered by trees (47%) and grassland (30%) within 2 miles, trees (52%) and grassland (23%) within 10 miles, and trees (40%) and water (30%) within 50 miles.

2 miles
253 ft
10 miles
807 ft
50 miles
2,067 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Rochester 6.8 mi · Brighton 6.8 mi · Gates-North Gates 8.7 mi · Irondequoit 11 mi · Batavia 29 mi · Auburn 53 mi · East Amherst 55 mi · Lockport 55 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Henrietta (43.0592°, -77.6122°, elevation 600 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).