Frost Dates for Cambridge, MN 55008

Last spring frost May 11 · First fall frost September 25 · 137 frost-free days · USDA Zone 4b

ZIP 55008 has about 16,700 people.

Moderate season: 137 frost-free days. Spring frost risk spans April 25–May 29 (34 days). Fall frost risk spans September 14–October 6 (22 days).

Frost probability for 55008

Frost10%50%90%
Spring (last frost)May 29May 11April 25
Fall (first frost)September 14September 25October 6

Dates come from NOAA 1971–2000 freeze probabilities at CEDAR (27.7 km away); the 50% date is the median year.

Which crops fit a 137-day season in Cambridge

In Cambridge (137 frost-free days, a moderate season), 39 of 56 planner crops fit outright, 16 get two plantings, 1 crop is perennial.

CropStart indoorsPlant out / sowDays you haveVerdictLast sow date
TomatoApr 6May 25–Jun 195fits: 80 days to maturity, 95 available after May 25.May 26
PepperMar 30May 25–Jun 195fits: 75 days to maturity, 95 available after May 25.May 31
LettuceMar 16Apr 13–Apr 20172two-plantings: Plant Apr 13 and again by Aug 4; both mature before Oct 2.Aug 4
Carrots—Apr 20–Apr 27179fits: 70 days to maturity, 179 available after Apr 20.Jul 24
CucumberApr 20May 25–Jun 1109fits: 60 days to maturity, 109 available after May 25.Jun 29
Beans—May 18–Jun 1123fits: 60 days to maturity, 123 available after May 18.Jul 6
Peas—Mar 16–May 25200fits: 65 days to maturity, 200 available after Mar 16.Jul 15
ZucchiniApr 27May 25–Jun 1109fits: 55 days to maturity, 109 available after May 25.Jul 4
OnionFeb 16Apr 13–Apr 27172fits: 100 days to maturity, 172 available after Apr 13.—
Spinach—Mar 16–May 4214two-plantings: Plant Mar 16 and again by Aug 23; both mature before Oct 16.Aug 23
KaleMar 2Apr 13–Apr 27186two-plantings: Plant Apr 13 and again by Aug 8; both mature before Oct 16.Aug 8
BroccoliMar 16Apr 13–Apr 27172fits: 80 days to maturity, 172 available after Apr 13.Jun 30
CabbageMar 16Apr 13–Apr 27186fits: 70 days to maturity, 186 available after Apr 13.Jul 24
Radish—Mar 16–Jun 8200two-plantings: Plant Mar 16 and again by Aug 24; both mature before Oct 2.Aug 24
Beets—Mar 16–Jun 8200two-plantings: Plant Mar 16 and again by Jul 25; both mature before Oct 2.Jul 25
Potatoes—Apr 27–May 4158fits: 90 days to maturity, 158 available after Apr 27.—
Garlic—Sep 25242overwinter: Plant Sep 25 to Oct 16; harvest the following summer.Oct 16
Strawberry—Apr 6–Jun 1193perennial: A perennial: plant Apr 6; it fruits from the following year and keeps producing for several years.—
CornApr 13May 18–May 25109fits: 75 days to maturity, 109 available after May 18.Jun 7
PumpkinApr 27May 25–May 25102fits: 100 days to maturity, 102 available after May 25.—
CauliflowerMar 30May 4–May 18151fits: 75 days to maturity, 151 available after May 4.Jul 5
Swiss ChardMar 16Apr 27–Apr 27158two-plantings: Plant Apr 27 and again by Jul 25; both mature before Oct 2.Jul 25
Arugula—Mar 16–Jun 8214two-plantings: Plant Mar 16 and again by Aug 23; both mature before Oct 16.Aug 23
Brussel SproutsMar 16Apr 13–Apr 27186fits: 100 days to maturity, 186 available after Apr 13.Jun 24
Butternut SquashApr 27May 25–Jun 1102fits: 100 days to maturity, 102 available after May 25.—
EggplantMar 23May 25–Jun 195fits: 70 days to maturity, 95 available after May 25.Jun 5
OkraApr 13May 18–May 25116fits: 55 days to maturity, 116 available after May 18.Jul 4
BasilApr 6Jun 1–Jun 1102fits: 60 days to maturity, 102 available after Jun 1.Jun 29
Cilantro—Apr 13–May 4172two-plantings: Plant Apr 13 and again by Jul 30; both mature before Oct 2.Jul 30
ParsleyMar 2May 18–May 25137fits: 70 days to maturity, 137 available after May 18.Jul 10
CeleryMar 2May 18–Jun 1137fits: 120 days to maturity, 137 available after May 18.May 21
ScallionsMar 2Apr 13–Apr 27186two-plantings: Plant Apr 13 and again by Aug 3; both mature before Oct 16.Aug 3
Turnip—Apr 13–Apr 27186two-plantings: Plant Apr 13 and again by Aug 13; both mature before Oct 16.Aug 13
Kohlrabi—Mar 30–Apr 13200two-plantings: Plant Mar 30 and again by Aug 8; both mature before Oct 16.Aug 8
Bok ChoyApr 13May 4–May 11151two-plantings: Plant May 4 and again by Aug 4; both mature before Oct 2.Aug 4
CollardsMar 2Apr 13–Apr 27186two-plantings: Plant Apr 13 and again by Aug 3; both mature before Oct 16.Aug 3
CantaloupeApr 27May 25–Jun 195fits: 85 days to maturity, 95 available after May 25.—
ChivesFeb 16May 18–May 25151fits: 90 days to maturity, 151 available after May 18.—
Dill—Mar 16–Jun 8200two-plantings: Plant Mar 16 and again by Jul 25; both mature before Oct 2.Jul 25
OreganoMar 2May 18–May 25151fits: 80 days to maturity, 151 available after May 18.—
RosemaryFeb 16May 18–May 25137fits: 80 days to maturity, 137 available after May 18.—
SageMar 16May 18–May 25151fits: 75 days to maturity, 151 available after May 18.—
ThymeMar 2May 18–May 25151fits: 90 days to maturity, 151 available after May 18.—
CalendulaMar 30Apr 27–May 11158two-plantings: Plant Apr 27 and again by Jul 30; both mature before Oct 2.Jul 30
CosmosApr 13May 11–May 25123fits: 60 days to maturity, 123 available after May 11.Jun 29
LavenderFeb 16May 11–May 25158fits: 90 days to maturity, 158 available after May 11.—
MarigoldsMar 30May 11–May 18123two-plantings: Plant May 11 and again by Jul 9; both mature before Sep 11.Jul 9
MelonsApr 27May 25–Jun 195fits: 85 days to maturity, 95 available after May 25.—
Mint—May 11–May 25158fits: 90 days to maturity, 158 available after May 11.—
NasturtiumsApr 13May 11–May 18123fits: 55 days to maturity, 123 available after May 11.Jul 4
Pole Beans—May 18–Jun 1116fits: 65 days to maturity, 116 available after May 18.Jun 24
Spaghetti SquashApr 27May 25–Jun 1102fits: 90 days to maturity, 102 available after May 25.—
Sunflowers—May 11–May 25123fits: 70 days to maturity, 123 available after May 11.Jun 19
TomatillosMar 16May 18–May 25102fits: 75 days to maturity, 102 available after May 18.May 31
WatermelonApr 27May 18–May 25102fits: 80 days to maturity, 102 available after May 18.May 26
Yellow SquashApr 27May 25–Jun 1109fits: 55 days to maturity, 109 available after May 25.Jul 4
ZinniasApr 13May 11–May 25123fits: 60 days to maturity, 123 available after May 11.Jun 29

Month by month in Cambridge

MonthWhat to do
JanuaryPlan your garden layout and order seeds. Research varieties suited to your frost dates.
FebruaryStart indoors: Chives (Feb 16), Lavender (Feb 16), Onion (Feb 16), Rosemary (Feb 16).
MarchStart indoors: Celery (Mar 2), Collards (Mar 2), Kale (Mar 2), Oregano (Mar 2), Parsley (Mar 2), Scallions (Mar 2), +13 more. Direct sow from: Arugula (Mar 16), Beets (Mar 16), Dill (Mar 16), Peas (Mar 16), Radish (Mar 16), Spinach (Mar 16), +1 more.
AprilStart indoors: Basil (Apr 6), Tomato (Apr 6), Bok Choy (Apr 13), Corn (Apr 13), Cosmos (Apr 13), Nasturtiums (Apr 13), +11 more. Direct sow from: Cilantro (Apr 13), Turnip (Apr 13), Carrots (Apr 20), Potatoes (Apr 27). Transplant from: Broccoli (Apr 13), Brussel Sprouts (Apr 13), Cabbage (Apr 13), Collards (Apr 13), Kale (Apr 13), Lettuce (Apr 13), +4 more. Plant: Strawberry (Apr 6).
MayDirect sow from: Sunflowers (May 11), Beans (May 18), Pole Beans (May 18). Transplant from: Bok Choy (May 4), Cauliflower (May 4), Cosmos (May 11), Lavender (May 11), Marigolds (May 11), Mint (May 11), +24 more. Last frost around May 11. Last sowing dates: Celery (May 21), Tomato (May 26), Watermelon (May 26), Pepper (May 31), Tomatillos (May 31).
JuneTransplant from: Basil (Jun 1). Last sowing dates: Eggplant (Jun 5), Corn (Jun 7), Sunflowers (Jun 19), Brussel Sprouts (Jun 24), Pole Beans (Jun 24), Basil (Jun 29), +4 more.
JulyLast sowing dates: Nasturtiums (Jul 4), Okra (Jul 4), Yellow Squash (Jul 4), Zucchini (Jul 4), Cauliflower (Jul 5), Beans (Jul 6), +10 more.
AugustLast sowing dates: Collards (Aug 3), Scallions (Aug 3), Bok Choy (Aug 4), Lettuce (Aug 4), Kale (Aug 8), Kohlrabi (Aug 8), +4 more.
SeptemberDirect sow from: Garlic (Sep 25). First frost around September 25.
OctoberLast sowing dates: Garlic (Oct 16).
NovemberClean up spent plants. Add compost to beds. Rest, review, and plan next year's garden.
DecemberClean up spent plants. Add compost to beds. Rest, review, and plan next year's garden.

Frequently Asked Questions

What is the last frost date for Cambridge, MN (ZIP 55008)?

The median last spring frost date for Cambridge, MN (ZIP code 55008) is around May 11. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before April 25; one in ten it runs past May 29.

What is the first fall frost date in Cambridge, MN?

The median first fall frost date for Cambridge, MN is around September 25. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around September 14 in the earliest one-in-ten years, so cover tomatoes and peppers from then.

How long is the growing season in Cambridge, MN?

The frost-free growing season in Cambridge is about 137 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Cambridge (137 frost-free days, a moderate season), 39 of 56 planner crops fit outright, 16 get two plantings, 1 crop is perennial.

What USDA hardiness zone is Cambridge, MN?

Cambridge, MN is in USDA hardiness zone 4b (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.

When should I start tomatoes indoors in Cambridge, MN?

Start tomatoes indoors Apr 6 and plant out May 25 in Cambridge. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.

How many plantings of lettuce fit in Cambridge?

Two: plant Apr 13 and again by Aug 4; both mature before Oct 2.

When do I plant garlic in Cambridge?

Sep 25 to Oct 16; it overwinters and is ready the following summer.

Which nearby ZIP has a longer season?

North Branch (ZIP 55056) has 144 frost-free days, 7 more than Cambridge (ZIP 55008). See North Branch ZIP 55056 frost dates

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