Green Bay, WI weather in April
In April, Green Bay sees highs around 54°F and lows around 35°F: chilly, with frequent rain and some snow. Expect about 12 wet days. Snowfall averages about 4.7 in.
- Normal high
- 54°F
- Normal low
- 35°F
- Wet days
- 12
- 3.0 in total
- Snowfall
- 4.7 in
- snow on the ground 2 days
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 47°F | 61°F |
| Normal low | 30°F | 40°F |
| Chance of a wet day | 37% | 39% |
| Sunrise / sunset | 6:32 am / 7:18 pm | 5:43 am / 7:54 pm |
| Daylight | 12.8 h | 14.2 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical April day
- 6 am38°Fdew point 32°F
- 9 am45°Fdew point 33°F
- Noon50°Fdew point 34°F
- 3 pm52°Fdew point 34°F
- 6 pm49°Fdew point 34°F
- 9 pm43°Fdew point 33°F
NOAA hourly normals (local standard time) from Green Bay (5 mi away); average wind 10 mph; clear or few clouds in 50% of daytime hours, mostly cloudy or overcast in 44%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F5 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph0 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow12 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below12 of 30
- Snow on the groundsnow depth 1 in or more2 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain and snow in April
Normal precipitation is 3.0 in; a dry April brings about 1.9 in and a wet one about 3.8 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 4.7 in, with about 1 day of an inch or more.
How April varies from year to year
- Warmest April, 1991-20202010: average high 61°F
- Coolest April2018: average high 45°F
- Wettest April2011: 6.2 in
- Driest April2016: 1.3 in
- Highest reading85°F (April 29, 2007)
- Lowest reading9°F (April 8, 2018)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 40°F | 54°F | 67°F |
| Normal low | 24°F | 35°F | 46°F |
| Wet days | 10 | 12 | 12 |
| Comfortable days | 1 | 5 | 14 |
| Daylight | 11.9 h | 13.5 h | 14.8 h |
Highs change by +14°F from March and +13°F into May.
Nearby alternatives in April
- Warmer: Rockford, IL164 mi · high 60°F · 12 wet days
- Cooler: Sister Bay, WI64 mi · high 47°F · 10 wet days
How Green Bay ranks in April
- Normal high346th warmest of 378 cities; 4th of 5 in Wisconsin
- Wet days308th driest of 378
- Comfortable days301st most of 340
What to pack for Green Bay in April
- A warm jacket – lows near 35°F, highs near 54°F
- A rain jacket or umbrella – rain or snow on about 12 days
- Waterproof boots – about 4.7 in of snow in a typical year
Frost in April
The last spring frost typically comes around Apr 30; in 1 year in 10 it comes after May 16. All frost dates for Green Bay.
Heating and cooling
April has 622 heating degree days and 1 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.
Questions
How cold is Green Bay in April?
The normal high is 54°F and the normal low is 35°F. From 1991 to 2020 the coldest April reading was 9°F (April 8, 2018).
Does it rain a lot in Green Bay in April?
About 12 days in April have at least 0.01 in of precipitation, and the normal total is 3.0 in. The wettest April in 1991-2020 was in 2011 (6.2 in); the driest was in 2016 (1.3 in).
Does it snow in Green Bay in April?
Yes. Normal snowfall in April is 4.7 in, and snow covers the ground on about 2 days.
Is April a good time to visit Green Bay?
April ranks 6th of 12 months on our comfort score for Green Bay (54 out of 100). It has about 5 comfortable days. The best months are May, June and September.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Green Bay (USW00014898), 4.7 mi WSW of the city center, 682 ft (89 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Austin Straubel International Airport (726450-14898), 6.4 mi WSW of the city center, 684 ft (91 ft higher than the city). Hourly observations, 1991-2020.