Post Falls weather in January

In January, Post Falls sees average daytime highs of 35°F and overnight lows near 25°F, with 3.6 in of precipitation across 14.3 wet days and about 8.7 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 33°F in the first days to 37°F by the end. The sky is clear or mostly clear about 15% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 18 min at the start of January to 9 h 12 min by month's end. Set against the rest of the year, January is Post Falls's 11th-clearest and 9th-windiest month. For the whole year in context, see Post Falls's year-round climate.

Daytime high
35°
11th warmest
Overnight low
25°
1st coldest
Precipitation
3.6 in
14.3 wet days
Daylight
8 h 36 min
7:39 AM – 4:16 PM
Cloud cover
75%
11th clearest
Wind
5 mph
9th windiest
Solar energy
1.23 kWh/m²
Travel score
0.0
out of 10

Post Falls is city in Kootenai County, Idaho, United States.

Density
817/km²
people per km²
Founded
1871

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 33°F in the first days to 37°F by the end.

A typical January day in Post Falls reaches about 35°F in the afternoon and slips back to 25°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 24°F and 43°F. Set against its neighbours, January runs on par with December and about 4°F cooler than February.

10°20°30°40°50°151015202531
Avg high (°F)Avg low (°F)
13324
23324
33324
43324
53324
63324
73424
83424
93424
103424
113424
123425
133425
143425
153525
163525
173525
183525
193525
203525
213525
223525
233625
243626
253626
263626
273626
283626
293726
303726
313726

How January really feels in Post Falls

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.

Post Falls weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 25°3.614.310.18.70.0
Feb39° / 26°2.511.47.69.90.0
Mar47° / 31°3.213.85.911.61.3
Apr56° / 37°2.712.41.613.33.5
May65° / 44°2.39.60.114.95.9
Jun72° / 50°1.77.6015.77.0
Jul83° / 57°0.73.4015.47.3
Aug82° / 56°0.72.9014.17.4
Sep72° / 49°1.150.112.47.7
Oct57° / 39°2.59.20.510.64.2
Nov42° / 31°3.8146.19.10.5
Dec34° / 26°3.813.610.28.30.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% 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 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22377
32377
42377
52377
62377
72476
82476
92476
102377
112278
122377
132377
142377
152476
162575
172575
182575
192575
202575
212575
222575
232575
242674
252674
262674
272674
282773
292773
302773
312773

Chance of precipitation in January

Any precipitationSnow

Post Falls gets around 3.6 in of rain and snow over 14.3 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 46% and peaks near 48% on the wettest days, and about 10 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14636
24736
34736
44835
54835
64835
74834
84834
94834
104834
114834
124835
134835
144735
154735
164735
174634
184634
194534
204533
214533
224432
234432
244431
254431
264330
274329
284229
294228
304127
314127

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 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 January

Winds average 5 mph in January.

Across January, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 18 min at the start of January to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over January. Sunrise moves from 7:43 AM to 7:25 AM, and sunset from 3:59 PM to 4:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.37:433:59
28.37:434:00
38.37:434:01
48.37:434:02
58.37:434:03
68.47:434:04
78.47:424:05
88.47:424:06
98.47:424:07
108.47:414:08
118.57:414:09
128.57:414:11
138.57:404:12
148.67:404:13
158.67:394:14
168.67:394:16
178.67:384:17
188.77:374:18
198.77:374:20
208.77:364:21
218.87:354:22
228.87:344:24
238.97:344:25
248.97:334:27
258.97:324:28
269.07:314:29
279.07:304:31
289.17:294:32
299.17:284:34
309.17:274:35
319.27:254:37

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.23 kWh/m².

For context, solar energy here swings from a low near 1.03 kWh/m² to a high of 7.52 kWh/m² in July across the year — January's 1.23 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.1Dim
41.1Dim
51.1Dim
61.1Dim
71.1Dim
81.1Dim
91.1Dim
101.1Dim
111.1Dim
121.2Dim
131.2Dim
141.2Dim
151.2Dim
161.2Dim
171.3Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.4Dim
231.4Dim
241.4Dim
251.4Dim
261.5Dim
271.5Dim
281.5Dim
291.6Dim
301.6Dim
311.6Dim
Planning a trip in January

Is January a good time to visit Post Falls?

Our two travel scores rate January 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

January is a weaker month for outdoor sightseeing in Post Falls.

What to pack for Post Falls in January

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

In January, Post Falls sees daytime highs around 35°F and nights near 25°F. Pack a warm layer, a heavy coat and rain gear. About 14 days see rain.

a warm layera heavy coatrain gear

UV index in Post Falls in January

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Post Falls peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highHighModerateLowJul 17UV 8Dec 15UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul9Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Post Falls 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 Post Falls is worst in August — around 30 µg/m³ PM2.5 (moderate), about 4.9× the cleanest month (December, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1828 µg/m³Dec 216 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr11Good
May11Good
Jun10Good
Jul13Moderate
Aug30Moderate
Sep20Moderate
Oct11Good
Nov11Good
Dec6Good
Location & terrain

Where is Post Falls?

Post Falls sits at 47.7°N, 117.0°W, 2,182 ft above sea level, in United States. The nearest listed city is Coeur d'Alene, 8.7 mi away.

Topography around Post Falls

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

Within 2 miles, the terrain around Post Falls has significant variations in elevation — a maximum elevation change of 876 ft around an average of 2,198 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,261 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,318 ft.

The land around Post Falls is covered by trees (33%), artificial surfaces (32%) and grassland (26%) within 2 miles, trees (56%) and grassland (23%) within 10 miles, and trees (63%) within 50 miles.

2 miles
876 ft
10 miles
3,261 ft
50 miles
5,318 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Coeur d'Alene 8.7 mi · Spokane Valley 14 mi · Opportunity 14 mi · Spokane 22 mi · Moscow 68 mi · Pullman 69 mi · Lewiston 90 mi · Lewiston Orchards 93 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 Post Falls (47.718°, -116.9516°, elevation 2,182 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).