Frost Dates for Bay City, OR

Based on data from Tillamook 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 22
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 2
First Fall Frost October 9

Hard Freeze (28°F)

Last Spring Hard Freeze March 22
First Fall Hard Freeze November 15
45.52°N, -123.89°W © OpenStreetMap

Growing Season

182 Days April 22 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 8b

Avg. annual minimum: 15 to 20°F (−9 to −7°C)

Learn more

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

Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

Köppen climate map

Temperature

30° 40° 50° 60° 70°
45°
High: 52°F
Avg: 45°F
Low: 37°F
Jan
45°
High: 53°F
Avg: 45°F
Low: 36°F
Feb
46°
High: 55°F
Avg: 46°F
Low: 37°F
Mar
48°
High: 57°F
Avg: 48°F
Low: 39°F
Apr
52°
High: 61°F
Avg: 52°F
Low: 44°F
May
56°
High: 64°F
Avg: 56°F
Low: 48°F
Jun
59°
High: 68°F
Avg: 59°F
Low: 50°F
Jul
60°
High: 69°F
Avg: 60°F
Low: 50°F
Aug
58°
High: 68°F
Avg: 58°F
Low: 47°F
Sep
53°
High: 63°F
Avg: 53°F
Low: 43°F
Oct
47°
High: 56°F
Avg: 47°F
Low: 39°F
Nov
44°
High: 51°F
Avg: 44°F
Low: 36°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 4" 8" 12" 12.5"
11.3"
11.30"
Jan
8.9"
8.92"
Feb
9.6"
9.60"
Mar
7.3"
7.25"
Apr
5.9"
5.87"
May
4.2"
4.17"
Jun
2.2"
2.18"
Jul
2.5"
2.51"
Aug
4.0"
4.04"
Sep
7.8"
7.79"
Oct
10.7"
10.73"
Nov
12.5"
12.53"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h14.5h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:33 AM – 4:27 PM · 8h 54m
Feb: 6:56 AM – 5:04 PM · 10h 09m
Mar: 6:11 AM – 5:49 PM · 11h 37m
Apr: 5:21 AM – 6:39 PM · 13h 18m
May: 4:39 AM – 7:21 PM · 14h 42m
Jun: 4:16 AM – 7:44 PM · 15h 28m
Jul: 4:26 AM – 7:34 PM · 15h 09m
Aug: 5:02 AM – 6:58 PM · 13h 55m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:40 AM – 5:20 PM · 10h 41m
Nov: 7:23 AM – 4:37 PM · 9h 15m
Dec: 7:44 AM – 4:16 PM · 8h 32m
Daylight Longest: 15h 29m · Shortest: 8h 31m

Nearby Stations

Tillamook 6se, OR April 5 - November 4 Cloverdale, OR March 17 - November 22 Otis 2 Ne, OR April 4 - November 16 Forest Grove, OR April 16 - October 26 Seaside, ORApril 2 - November 12 Mc Minnville, OR April 5 - November 7

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