Frost Dates for Hennessey, OK

Based on data from Hennessey 4 Ese weather station, 4 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 14
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 30
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 April 20
First Fall Frost October 25

Hard Freeze (28°F)

Last Spring Hard Freeze April 2
First Fall Hard Freeze November 6
36.11°N, -97.90°W © OpenStreetMap

Growing Season

199 Days April 14 to October 30

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 7a

Avg. annual minimum: 0 to 5°F (−18 to −15°C)

Learn more

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

Cfa Humid Subtropical

Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.

Köppen climate map

Temperature

20° 40° 60° 80° 100°
36°
High: 47°F
Avg: 36°F
Low: 24°F
Jan
39°
High: 51°F
Avg: 39°F
Low: 27°F
Feb
48°
High: 61°F
Avg: 48°F
Low: 35°F
Mar
57°
High: 70°F
Avg: 57°F
Low: 44°F
Apr
67°
High: 79°F
Avg: 67°F
Low: 55°F
May
78°
High: 90°F
Avg: 78°F
Low: 65°F
Jun
82°
High: 95°F
Avg: 82°F
Low: 70°F
Jul
81°
High: 94°F
Avg: 81°F
Low: 68°F
Aug
73°
High: 85°F
Avg: 73°F
Low: 60°F
Sep
60°
High: 73°F
Avg: 60°F
Low: 47°F
Oct
47°
High: 59°F
Avg: 47°F
Low: 35°F
Nov
37°
High: 48°F
Avg: 37°F
Low: 26°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 3" 6" 9" 10.6"
3.4"
3.44"
Jan
4.1"
4.07"
Feb
5.4"
5.44"
Mar
7.2"
7.23"
Apr
8.2"
8.22"
May
10.0"
9.98"
Jun
10.6"
10.62"
Jul
8.5"
8.48"
Aug
7.3"
7.32"
Sep
7.2"
7.22"
Oct
6.9"
6.92"
Nov
4.6"
4.60"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h10.5h11.5h13h14h14.5h14h13.5h12h11h10h9.5h
Jan: 7:06 AM – 4:54 PM · 9h 48m
Feb: 6:40 AM – 5:20 PM · 10h 41m
Mar: 6:08 AM – 5:52 PM · 11h 44m
Apr: 5:32 AM – 6:28 PM · 12h 56m
May: 5:03 AM – 6:57 PM · 13h 55m
Jun: 4:47 AM – 7:13 PM · 14h 26m
Jul: 4:53 AM – 7:07 PM · 14h 14m
Aug: 5:19 AM – 6:41 PM · 13h 22m
Sep: 5:54 AM – 6:06 PM · 12h 13m
Oct: 6:28 AM – 5:32 PM · 11h 03m
Nov: 6:59 AM – 5:01 PM · 10h 03m
Dec: 7:13 AM – 4:47 PM · 9h 33m
Daylight Longest: 14h 27m · Shortest: 9h 33m

Nearby Stations

Marshall 3sse Mesonet, OK April 11 - October 31 Kingfisher, OK April 8 - November 1 Kingfisher 1w Mesonet, OK April 9 - November 1 Enid, OKApril 6 - November 1 Breckinridge 3se Mesnt, OK April 10 - October 29 Lahoma 1wsw Mesonet, OK April 10 - October 31

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