Post Falls, United States experiences average highs of 15°C (59°F) and lows of 5°C (41°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 0.7°C (1.3°F) across the available records.
Post Falls, United States Weather & Climate 2026
Monthly climate averages for Post Falls, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: May–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.1/10
Best: June, July, August, September
UV Index
4
Low
Temperature 15°C / 5°C
Feels Like 13°C / 2°C
Rainy Days 10
Rainfall 60 mm
Sunshine 9 h
Humidity 67%
Wind Speed 14 km/h
Dew Point 4°C
Snow Days 9 days
Frost Days 17 days
Hottest Month
31°C
July
Avg Low16°C
Rain1days
Coldest Month
-5°C
February
Avg High3°C
Rain14days
Driest Month
1days
July
Avg High31°C
Avg Low16°C
Windiest Month
16 km/h
April (Gusts 43)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 04:50
Daylight 16h
Sunset 20:49
Live conditions—
Post Falls on the map · live conditions
Post Falls, United States
- Continent
- Americas
- Country
- United States
- City
- Post Falls
- Population
- 30.5K
- Elevation
- 665 m
- Coordinates
- 47.72°, -116.95°
Seasonal Breakdown
Spring
Mar–May
Avg High 15°C
Avg Low 3°C
Rain 11 days/mo
Summer
Jun–Aug
Avg High 29°C
Avg Low 15°C
Rain 3 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 16°C
Avg Low 6°C
Rain 10 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 3°C
Avg Low -4°C
Rain 15 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 2°C / -4°C . Feb: 3°C / -5°C . Mar: 9°C / -1°C . Apr: 14°C / 2°C . May: 21°C / 7°C . Jun: 25°C / 12°C . Jul: 31°C / 16°C . Aug: 31°C / 16°C . Sep: 25°C / 12°C . Oct: 15°C / 5°C . Nov: 7°C / 1°C . Dec: 2°C / -3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 88 mm. Feb: 73 mm. Mar: 82 mm. Apr: 57 mm. May: 52 mm. Jun: 32 mm. Jul: 7 mm. Aug: 12 mm. Sep: 30 mm. Oct: 74 mm. Nov: 104 mm. Dec: 106 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 87%. Feb: 79%. Mar: 75%. Apr: 65%. May: 61%. Jun: 53%. Jul: 40%. Aug: 43%. Sep: 55%. Oct: 70%. Nov: 84%. Dec: 87%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 11 km/h . Feb: 15 km/h . Mar: 15 km/h . Apr: 16 km/h . May: 15 km/h . Jun: 15 km/h . Jul: 14 km/h . Aug: 14 km/h . Sep: 14 km/h . Oct: 14 km/h . Nov: 13 km/h . Dec: 13 km/h .
Sunshine
Sunshine
Sunshine: Jan: 4h. Feb: 6h. Mar: 8h. Apr: 11h. May: 12h. Jun: 13h. Jul: 14h. Aug: 12h. Sep: 10h. Oct: 8h. Nov: 5h. Dec: 4h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 2. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 1. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 13 days. Feb: 13 days. Mar: 7 days. Apr: 3 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 days. Nov: 8 days. Dec: 15 days.
Climate Trends
Average highs have warmed by 0.7°C (1.3°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 31°C | Jul · 31°C |
| Coldest month | Feb 2025 · -8°C | Feb · -5°C |
| Wettest month | Dec 2025 · 163 mm | Dec · 106 mm |
| Windiest month | Dec 2025 · 18 km/h | Apr · 16 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 2°C / -4°C | -1°C / -8°C | 14days (88 mm) Wet | 4.4h Fair | 87% Very Muggy | 1.4 Low | Poor | View Details |
| February | 3°C / -5°C | 0°C / -9°C | 14days (73 mm) Wet | 5.9h Fair | 79% Humid | 2.1 Moderate | Poor | View Details |
| March | 9°C / -1°C | 6°C / -5°C | 13days (82 mm) Wet | 8.3h Good | 75% Muggy | 3.6 Moderate | Poor | View Details |
| April | 14°C / 2°C | 12°C / -1°C | 12days (57 mm) Wet | 10.5h Excellent | 65% Muggy | 5.2 High | Fair | View Details |
| May | 21°C / 7°C | 19°C / 5°C | 9days (52 mm) Wet | 11.9h Excellent | 61% Muggy | 6.3 High | Good | View Details |
| June best | 25°C / 12°C | 24°C / 10°C | 6days (32 mm) Good | 13h Excellent | 53% Moderate | 6.9 High | Excellent | View Details |
| July best | 31°C / 16°C | 30°C / 15°C | 1days (7 mm) Excellent | 13.9h Excellent | 40% Comfortable | 7.2 Very High | Excellent | View Details |
| August best | 31°C / 16°C | 29°C / 15°C | 3days (12 mm) Excellent | 12.3h Excellent | 43% Moderate | 6.4 High | Excellent | View Details |
| September best | 25°C / 12°C | 23°C / 10°C | 5days (30 mm) Good | 10.4h Excellent | 55% Moderate | 4.9 Moderate | Excellent | View Details |
| October | 15°C / 5°C | 13°C / 2°C | 11days (74 mm) Wet | 8h Good | 70% Muggy | 3.2 Moderate | Fair | View Details |
| November | 7°C / 1°C | 4°C / -3°C | 15days (104 mm) Wet | 5h Fair | 84% Humid | 1.4 Low | Poor | View Details |
| December | 2°C / -3°C | -1°C / -6°C | 16days (106 mm) Wet | 3.7h Poor | 87% Very Muggy | 1.1 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Post Falls are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Post Falls, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Post Falls is July, with average daytime highs of 31°C (87°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Post Falls is February, with average overnight lows of -5°C (24°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Post Falls is December, averaging 106mm of precipitation across 16 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Post Falls runs through December, November, January, February, with the heaviest rainfall in December. Based on 10-year averages for Post Falls.
Post Falls receives approximately 107 sunshine hours per year. The sunniest month is July with around 14 hours. Based on climate data for Post Falls.
The least favorable months to visit Post Falls are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Post Falls is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Post Falls is 67%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Post Falls receives snow. Months with snowfall average 9 snow days and 19 cm (7 in) of accumulation, with about 17 frost days during winter.
Average wind speeds in Post Falls are 14 km/h (9 mph). The windiest month is April with peak winds reaching 16 km/h (10 mph) (gusts up to 43 km/h / 27 mph).
Post Falls averages 6 clear-sky days per month with overall cloud cover around 56%. The clearest skies occur in July.
The annual average dew point in Post Falls is 4°C (39°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Post Falls has a Hot-Summer Mediterranean climate, classified as Csa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Post Falls ranges from 2°C (36°F) to 13°C (55°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Post Falls. It earns a climate score of 8.7/10 with Excellent.
For June in Post Falls, pack Warm evening layer, Umbrella, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 25°C (77°F) and 6 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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