Frost Dates for ZANJAN, Iran
Elevation: 1628 m
Frost Dates
Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide.
April 12
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date.
November 10
30% Probability
Only 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 17
First Fall Frost
November 6
Hard Freeze (−2°C)
Last Spring Hard Freeze
April 2
First Fall Hard Freeze
November 17
Growing Season
212 Days
April 12 to November 10
USDA Hardiness Zone
Hardiness 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: −18 to −15°C
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
BSk
Cold Semi-Arid (Steppe)
Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.
Temperature
-10°
0°
10°
20°
30°
Avg High
Avg Temp
Avg Low
Light Frost (0°C)
Hard Frost (−2°C)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 3° | -3° | -7° |
| February | 5° | -1° | -6° |
| March | 11° | 5° | -2° |
| April | 17° | 10° | 4° |
| May | 22° | 15° | 8° |
| June | 27° | 19° | 12° |
| July | 29° | 21° | 14° |
| August | 30° | 22° | 15° |
| September | 26° | 19° | 12° |
| October | 20° | 13° | 7° |
| November | 11° | 5° | 0° |
| December | 5° | 0° | -4° |
Precipitation
0 mm
20 mm
40 mm
60 mm
80 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 38 |
| February | 53 |
| March | 71 |
| April | 76 |
| May | 61 |
| June | 0 |
| July | 0 |
| August | 0 |
| September | 0 |
| October | 25 |
| November | 51 |
| December | 33 |
Sunrise / Sunset
Daylight
Longest: 14h 31m · Shortest: 9h 29m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:08 AM | 4:52 PM | 9h 45m |
| February | 6:41 AM | 5:19 PM | 10h 39m |
| March | 6:08 AM | 5:52 PM | 11h 43m |
| April | 5:32 AM | 6:28 PM | 12h 57m |
| May | 5:01 AM | 6:59 PM | 13h 58m |
| June | 4:45 AM | 7:15 PM | 14h 30m |
| July | 4:51 AM | 7:09 PM | 14h 17m |
| August | 5:18 AM | 6:42 PM | 13h 25m |
| September | 5:53 AM | 6:07 PM | 12h 13m |
| October | 6:29 AM | 5:31 PM | 11h 02m |
| November | 7:00 AM | 4:60 PM | 9h 60m |
| December | 7:15 AM | 4:45 PM | 9h 30m |
Nearby Stations
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