Deerfield in Spring
In spring (March, April and May), Deerfield sees average daytime highs around 47°F and overnight lows near 39°F, with 11.8 in of precipitation over about 34 wet days across the season. It is the 3rd-warmest season and the wettest season of the year.
Over the season highs climb from about 34°F in early March to 64°F by late May. The sky is clear or mostly clear about 26% of the time across spring, and the air most often feels dry.
Spring is Deerfield's 3rd-best season to visit on our travel score. For the whole year in context, see Deerfield's year-round climate.
- Avg daytime high
- 47°F
- 3rd-warmest season
- Avg overnight low
- 39°F
- Precipitation
- 11.8 in
- 34 wet days
- Avg wind
- 12 mph
- Travel score
- 1.8
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Deerfield in Spring
Over the season highs climb from about 34°F in early March to 64°F by late May.
A typical spring day in Deerfield reaches about 47°F and drops to 39°F overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Deerfield
Once humidity and wind are folded in, spring brings about 0 days that feel above 90°F and 48 that feel at or below 32°F.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Deerfield 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 | 30° / 21° | 2.9 | 9.8 | 7 | 9.3 | 0.0 |
| Feb | 31° / 21° | 2.4 | 7.7 | 5.1 | 10.3 | 0.0 |
| Mar | 37° / 29° | 3.0 | 9.8 | 3.2 | 11.6 | 0.0 |
| Apr | 46° / 39° | 4.8 | 12 | 1.4 | 13.1 | 1.3 |
| May | 58° / 50° | 4.1 | 11.7 | 0 | 14.4 | 4.1 |
| Jun | 71° / 64° | 3.5 | 10.5 | 0 | 15 | 6.5 |
| Jul | 78° / 70° | 3.1 | 10.5 | 0 | 14.8 | 6.8 |
| Aug | 77° / 70° | 3.8 | 10.7 | 0 | 13.7 | 7.0 |
| Sep | 71° / 63° | 3.3 | 9.5 | 0 | 12.3 | 6.8 |
| Oct | 58° / 51° | 4.0 | 10.5 | 0.1 | 10.8 | 4.4 |
| Nov | 46° / 39° | 3.4 | 10 | 1.3 | 9.6 | 1.2 |
| Dec | 36° / 28° | 3.1 | 10 | 4.9 | 9 | 0.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 26% of the time across spring.
Chance of precipitation in Spring
Deerfield gets around 11.8 in of rain and snow over 34 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 12 mph across spring.
Sunrise & sunset in Spring
Daylight runs from about 10 h 54 min in early March to 14 h 48 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 5.0 kWh/m².
Is spring a good time to visit Deerfield?
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 weaker month for outdoor sightseeing in Deerfield.
What to pack for Deerfield in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Deerfield sees daytime highs around 47°F and nights near 39°F. Pack a warm layer and a heavy coat. Worth having: rain gear, sun protection and a windbreaker. About 34 days see rain.
Sea temperature near Deerfield in Spring
The nearest coast averages about 40°F across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 12 mi away) is warmest in August at about 72°F and coldest in February near 36°F.
It's comfortable for a long swim from Jul 14 to Sep 14 — about 2.1 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 38 | 36 | 36 | 39 | 44 | 56 | 69 | 72 | 68 | 58 | 48 | 42 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Refreshing | Refreshing | Refreshing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 38 | Bracing |
| Feb | 36 | Bracing |
| Mar | 36 | Bracing |
| Apr | 39 | Bracing |
| May | 44 | Bracing |
| Jun | 56 | Bracing |
| Jul | 69 | Refreshing |
| Aug | 72 | Refreshing |
| Sep | 68 | Refreshing |
| Oct | 58 | Bracing |
| Nov | 48 | Bracing |
| Dec | 42 | Bracing |
UV index in Deerfield in Spring
Clear-sky midday UV across spring averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Deerfield peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (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) | 2 | 3 | 4 | 6 | 7 | 9 | 9 | 8 | 6 | 3 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Deerfield 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 Deerfield is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 10 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) | 12 | 15 | 18 | 19 | 20 | 21 | 21 | 18 | 15 | 10 | 10 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 15 | Moderate |
| Mar | 18 | Moderate |
| Apr | 19 | Moderate |
| May | 20 | Moderate |
| Jun | 21 | Moderate |
| Jul | 21 | Moderate |
| Aug | 18 | Moderate |
| Sep | 15 | Moderate |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 11 | Good |
Where is Deerfield?
Deerfield sits at 42.2°N, 87.8°W, 686 ft above sea level, in United States. The nearest listed city is Highland Park, 2.5 mi away.
Topography around Deerfield
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Deerfield.
Within 2 miles, the terrain around Deerfield has only modest variations in elevation — a maximum elevation change of 138 ft around an average of 676 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 269 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 892 ft.
The land around Deerfield is covered by trees (51%) and artificial surfaces (31%) within 2 miles, trees (36%), water (28%) and artificial surfaces (23%) within 10 miles, and water (40%) 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 Deerfield (42.1711°, -87.8445°, elevation 686 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.