Tri-Cities in Spring
In spring (March, April and May), Tri-Cities sees average daytime highs around 68°F and overnight lows near 45°F, with 2.3 in of precipitation over about 15 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 53°F in early March to 81°F by late May. The sky is clear or mostly clear about 27% of the time across spring, and the air most often feels dry.
Spring is Tri-Cities's best season of the year to visit on our travel score. For the whole year in context, see Tri-Cities's year-round climate.
- Avg daytime high
- 68°F
- 2nd-warmest season
- Avg overnight low
- 45°F
- Precipitation
- 2.3 in
- 15 wet days
- Avg wind
- 7 mph
- Travel score
- 6.4
- best season of the year
- Months
- Mar · Apr · May
Temperature in Tri-Cities in Spring
Over the season highs climb from about 53°F in early March to 81°F by late May.
A typical spring day in Tri-Cities reaches about 68°F and drops to 45°F overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Tri-Cities
Once humidity and wind are folded in, spring brings about 0 days that feel above 90°F and 12 that feel at or below 32°F.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Tri-Cities weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 41° / 29° | 1.3 | 8.1 | 2.3 | 8.8 | 0.2 |
| Feb | 48° / 32° | 0.9 | 6.2 | 1.3 | 10 | 2.0 |
| Mar | 58° / 38° | 0.9 | 5.9 | 0.4 | 11.6 | 4.6 |
| Apr | 68° / 44° | 0.7 | 4.9 | 0 | 13.3 | 6.9 |
| May | 77° / 52° | 0.7 | 4.5 | 0 | 14.7 | 7.6 |
| Jun | 84° / 58° | 0.5 | 2.8 | 0 | 15.5 | 6.6 |
| Jul | 93° / 64° | 0.1 | 1 | 0 | 15.2 | 3.9 |
| Aug | 92° / 62° | 0.2 | 1 | 0 | 14 | 4.5 |
| Sep | 81° / 54° | 0.3 | 1.8 | 0 | 12.3 | 7.7 |
| Oct | 66° / 44° | 0.9 | 5 | 0 | 10.7 | 6.7 |
| Nov | 50° / 35° | 1.1 | 7.3 | 0.7 | 9.2 | 2.4 |
| Dec | 41° / 29° | 1.4 | 8.4 | 2.4 | 8.5 | 0.1 |
Cloud cover in Spring
The sky is clear or mostly clear about 27% of the time across spring.
Chance of precipitation in Spring
Tri-Cities gets around 2.3 in of rain and snow over 15 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 7 mph across spring.
Sunrise & sunset in Spring
Daylight runs from about 10 h 48 min in early March to 15 h 18 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.5 kWh/m².
Is spring a good time to visit Tri-Cities?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Tri-Cities for sightseeing.
What to pack for Tri-Cities in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Tri-Cities sees daytime highs around 68°F and nights near 45°F. Pack sun protection. Worth having: light clothes and a warm layer. About 15 days see rain.
UV index in Tri-Cities in Spring
Clear-sky midday UV across spring averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tri-Cities peaks around July 16 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 7 | 6 | 8 | 6 | 5 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | Very high | High | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Tri-Cities in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Tri-Cities is worst in August — around 27 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 14 | 11 | 9 | 10 | 13 | 27 | 21 | 12 | 11 | 9 |
| Level | Good | Good | Moderate | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 14 | Moderate |
| Apr | 11 | Good |
| May | 9 | Good |
| Jun | 10 | Good |
| Jul | 13 | Moderate |
| Aug | 27 | Moderate |
| Sep | 21 | Moderate |
| Oct | 12 | Moderate |
| Nov | 11 | Good |
| Dec | 9 | Good |
Where is Tri-Cities?
Tri-Cities sits at 46.2°N, 119.2°W, 348 ft above sea level, in United States. The nearest listed city is Kennewick, 3.7 mi away.
Topography around Tri-Cities
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Tri-Cities.
Within 2 miles, the terrain around Tri-Cities has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 400 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,677 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,894 ft.
The land around Tri-Cities is covered by artificial surfaces (32%) and grassland (28%) within 2 miles, grassland (38%) and cropland (28%) within 10 miles, and grassland (51%) and cropland (42%) within 50 miles.
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
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 Tri-Cities (46.2454°, -119.1962°, elevation 348 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.