Frost dates for Ashland Hanover County Municipal Airport, Virginia
Half of years have their last spring frost by April 10, but 1 year in 10 still frosts after April 29.
A frost date is really a percentile from 30 years of records at a nearby weather station: in about half of years a frost still comes after the median date. Both numbers are below, so you can choose the risk yourself.
The odds
Last spring frost
How often a frost still comes on or after each date.
- 1 year in 10
- April 29
- 1 year in 5
- April 21
- 3 years in 10
- April 16
- 2 years in 5
- April 13
- Half of years (the median)
- April 10
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- October 17
- 1 year in 5
- October 22
- 3 years in 10
- October 25
- 2 years in 5
- October 28
- Half of years (the median)
- October 31
- Growing season
- about 202 days
- Hardiness zones nearby
- 7a, 7b
- Summer days
- a usual high of about 30 °C87 °F
- Lettuce and spinach run to seed
- May to September, in hot, long days (how we know)
Summer and rain
A growing garden needs about 25 mm1 in of water a week, rain and watering together. Here is what a normal month brings.
Month by month
- January
- high ~8 °C47 °F · low ~-2 °C28 °F · rain ~88 mm3.5 in
- February
- high ~10 °C51 °F · low ~-1 °C29 °F · rain ~73 mm2.9 in
- March
- high ~15 °C59 °F · low ~2 °C36 °F · rain ~99 mm3.9 in
- April
- high ~21 °C70 °F · low ~7 °C45 °F · rain ~87 mm3.4 in
- May
- high ~25 °C77 °F · low ~13 °C55 °F · rain ~110 mm4.3 in
- June
- high ~29 °C85 °F · low ~17 °C63 °F · rain ~105 mm4.1 in
- July
- high ~32 °C89 °F · low ~20 °C68 °F · rain ~101 mm4 in
- August
- high ~30 °C87 °F · low ~19 °C66 °F · rain ~125 mm4.9 in
- September
- high ~27 °C81 °F · low ~15 °C59 °F · rain ~103 mm4 in
- October
- high ~21 °C70 °F · low ~9 °C47 °F · rain ~93 mm3.6 in
- November
- high ~15 °C60 °F · low ~3 °C38 °F · rain ~86 mm3.4 in
- December
- high ~10 °C51 °F · low ~-1 °C31 °F · rain ~94 mm3.7 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Ashland Hanover County Municipal Airport station (listed by NOAA as Ashland Hanover Co Muni Ap, USW00093775), at 37.71, -77.43. These are that station’s own records, unshifted. The further your garden is from it, the less exactly they describe your ground. The planner finds the nearest station to your garden and lowers its confidence with distance, so no number is presented as if it were measured in your garden.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a few hundred feet away does not. No table can know that about your garden. A few seasons of your own logged frosts can.
ZIP codes nearest this station
22546, 23005, 23009, 23015, 23047, 23059, 23060, 23069, 23075, 23106, 23111, 23116…
+17 moreShow fewer
23173, 23219, 23220, 23221, 23222, 23223, 23224, 23225, 23226, 23227, 23228, 23229, 23230, 23233, 23235, 23236, 23294.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Corbin, VA, last frost by April 14
- W Point 2 NW, VA, last frost by April 6
- Somerset, VA, last frost by April 17
- Mechanicsville 5 NE, MD, last frost by April 17
- Patuxent River Naval Air Station, MD, last frost by March 29
- Warrenton 3 SE, VA, last frost by April 9
Other stations in Virginia.
- Washington Reagan Airport, VA, last frost by March 24
- Vienna, VA, last frost by April 14
- Painter 2 W, VA, last frost by April 4
- Fentress NAAS, VA, last frost by March 23
- Purcellville, VA, last frost by April 16
- Roanoke Regional Airport, VA, last frost by April 3
- Richlands, VA, last frost by April 27
- Breaks Interstate Park, VA, last frost by April 22
When do I plant? · Where the dates come from
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