Denison weather in January

In January, Denison sees average daytime highs of 53°F and overnight lows near 36°F, with 2.5 in of precipitation across 6.7 wet days and about 10 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 53°F through the month. The sky is clear or mostly clear about 43% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Denison's 7th-clearest and 6th-windiest month. For the whole year in context, see Denison's year-round climate.

Daytime high
53°
12th warmest
Overnight low
36°
1st coldest
Precipitation
2.5 in
6.7 wet days
Daylight
10 hours
7:36 AM – 5:35 PM
Cloud cover
51%
7th clearest
Wind
8 mph
6th windiest
Solar energy
2.78 kWh/m²
Travel score
3.4
out of 10

Denison is city in Grayson County, Texas, United States.

Density
381/km²
people per km²
Founded
1872

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 53°F through the month.

A typical January day in Denison reaches about 53°F in the afternoon and slips back to 36°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 39°F and 67°F. Set against its neighbours, January runs about 2°F cooler than December and about 4°F cooler than February.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
15337
25236
35236
45236
55236
65236
75236
85236
95236
105336
115336
125336
135336
145336
155336
165336
175336
185336
195336
205436
215436
225436
235437
245437
255437
265437
275437
285537
295537
305537
315537

How January really feels in Denison

Once humidity and wind are folded in, January 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
wind chill below the day's low

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

Denison weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan53° / 36°2.56.70.7103.4
Feb58° / 40°2.67.20.710.74.5
Mar65° / 47°4.09.40.411.76.1
Apr73° / 55°4.69.1012.87.0
May80° / 64°6.011.9013.76.2
Jun88° / 72°3.78.8014.24.6
Jul93° / 75°2.06.30143.6
Aug92° / 75°2.05.8013.33.6
Sep85° / 68°3.36.8012.25.8
Oct75° / 56°4.27.9011.27.4
Nov64° / 46°3.47.10.110.26.2
Dec55° / 38°3.36.90.49.83.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 9% of January, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35347
45248
55248
65248
75248
85248
95248
105149
115149
125248
135248
145248
155248
165347
175347
185347
195347
205347
215347
225347
235347
245347
255248
265248
275149
285050
295149
305050
315050

Chance of precipitation in January

Any precipitationSnow

Denison gets around 2.5 in of rain and snow over 6.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 22% and peaks near 22% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1212
2212
3212
4212
5212
6212
7212
8212
9213
10213
11213
12213
13223
14223
15223
16222
17222
18222
19222
20222
21222
22222
23222
24222
25222
26222
27222
28222
29222
30222
31222

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19352
29352
39352
49352
59352
69352
79442
89442
99541
109541
119631
129631
139631
149631
159631
169631
179631
189631
199721
209721
219721
229721
239721
249721
259721
269721
279721
289622
299622
309622
319622

Wind in January

Winds average 8 mph in January.

Across January, daily wind ranges from about 8 mph on the calmest days to 8 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
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 48 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:36 AM to 7:30 AM, and sunset from 5:23 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:365:23
29.87:365:24
39.87:365:24
49.87:365:25
59.87:365:26
69.87:365:27
79.97:365:27
89.97:365:28
99.97:365:29
109.97:365:30
119.97:365:31
129.97:365:32
139.97:365:32
1410.07:365:33
1510.07:365:34
1610.07:365:35
1710.07:365:36
1810.07:355:37
1910.07:355:38
2010.17:355:39
2110.17:355:40
2210.17:345:40
2310.17:345:41
2410.17:335:42
2510.27:335:43
2610.27:335:44
2710.27:325:45
2810.27:325:46
2910.37:315:47
3010.37:315:48
3110.37:305:49

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.78 kWh/m².

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 6.76 kWh/m² in July across the year — January's 2.78 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.8Moderate
162.8Moderate
172.8Moderate
182.8Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.1Moderate
293.1Moderate
303.1Moderate
313.1Moderate
Planning a trip in January

Is January a good time to visit Denison?

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

3.4
Sightseeing
12th-best month of the year
0.0
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Denison.

What to pack for Denison in January

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

In January, Denison sees daytime highs around 53°F and nights near 36°F. Pack a warm layer. About 7 days see rain.

a warm layer

UV index in Denison in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Denison peaks around June 20 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 20UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr9Very high
May9Very high
Jun10Extreme
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Denison in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Denison is worst in July — around 18 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (November, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1618 µg/m³Nov 216 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar10Good
Apr10Good
May13Moderate
Jun15Moderate
Jul18Moderate
Aug14Moderate
Sep10Good
Oct6Good
Nov6Good
Dec6Good
Location & terrain

Where is Denison?

Denison sits at 33.8°N, 96.5°W, 728 ft above sea level, in United States. The nearest listed city is Sherman, 9.3 mi away.

Topography around Denison

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

Within 2 miles, the terrain around Denison has only modest variations in elevation — a maximum elevation change of 256 ft around an average of 709 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 449 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 768 ft.

The land around Denison is covered by trees (63%) and grassland (21%) within 2 miles, grassland (45%) and trees (38%) within 10 miles, and grassland (53%) and trees (32%) within 50 miles.

2 miles
256 ft
10 miles
449 ft
50 miles
768 ft
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Sherman 9.3 mi · Durant 19 mi · Celina 33 mi · Gainesville 35 mi · McKinney 39 mi · Prosper 39 mi · Frisco 45 mi · Ardmore 45 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 Denison (33.7557°, -96.5367°, elevation 728 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).