Frost Dates for Bridgeport, MI

Based on data from Saginaw #3 weather station, 5 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 29
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 21
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost May 4
First Fall Frost October 15

Hard Freeze (28°F)

Last Spring Hard Freeze April 17
First Fall Hard Freeze November 3
43.36°N, -83.88°W © OpenStreetMap

Growing Season

175 Days April 29 to October 21

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 6a

Avg. annual minimum: −10 to −5°F (−23 to −21°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

Köppen climate map

Temperature

10° 30° 50° 70° 90°
23°
High: 30°F
Avg: 23°F
Low: 16°F
Jan
25°
High: 33°F
Avg: 25°F
Low: 17°F
Feb
34°
High: 43°F
Avg: 34°F
Low: 25°F
Mar
46°
High: 56°F
Avg: 46°F
Low: 35°F
Apr
58°
High: 69°F
Avg: 58°F
Low: 47°F
May
68°
High: 79°F
Avg: 68°F
Low: 58°F
Jun
72°
High: 83°F
Avg: 72°F
Low: 62°F
Jul
71°
High: 82°F
Avg: 71°F
Low: 60°F
Aug
63°
High: 74°F
Avg: 63°F
Low: 52°F
Sep
51°
High: 61°F
Avg: 51°F
Low: 41°F
Oct
39°
High: 46°F
Avg: 39°F
Low: 31°F
Nov
29°
High: 35°F
Avg: 29°F
Low: 23°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.5"
3.0"
2.98"
Jan
3.0"
2.97"
Feb
4.3"
4.31"
Mar
5.5"
5.49"
Apr
5.7"
5.70"
May
5.6"
5.62"
Jun
5.8"
5.85"
Jul
6.5"
6.51"
Aug
5.8"
5.75"
Sep
4.6"
4.64"
Oct
3.6"
3.64"
Nov
3.4"
3.41"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15h15h14h12.5h11h9.5h9h
Jan: 7:26 AM – 4:34 PM · 9h 07m
Feb: 6:52 AM – 5:08 PM · 10h 17m
Mar: 6:11 AM – 5:49 PM · 11h 39m
Apr: 5:24 AM – 6:36 PM · 13h 12m
May: 4:45 AM – 7:15 PM · 14h 30m
Jun: 4:24 AM – 7:36 PM · 15h 12m
Jul: 4:32 AM – 7:28 PM · 14h 55m
Aug: 5:06 AM – 6:54 PM · 13h 47m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:37 AM – 5:23 PM · 10h 46m
Nov: 7:17 AM – 4:43 PM · 9h 27m
Dec: 7:36 AM – 4:24 PM · 8h 47m
Daylight Longest: 15h 14m · Shortest: 8h 46m

Nearby Stations

Saginaw Mbs Intl AP, MI April 26 - October 17 Frankenmuth 1se, MI May 3 - October 12 Auburn 2ne, MIMay 3 - October 14 Essexville, MI April 27 - October 20 Midland, MIApril 29 - October 16 Vassar, MIMay 9 - October 7

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