Norfolk Fruit Growers
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Frost Monitoring

Legend:
wind below 7 km/h
wind between 7 km/h and 13 km/h
wind greater than 13 km/h
Station Timestamp Temperature (2') (˚C) Temperature (8') (˚C) Leaf Sensor Temps (˚C) Wind Speed (km/h)
Andy Malo Fri, Oct 9, 2026 6:00 PM 0 20.83 N/A 4.55
Goode Farm Fri, Oct 9, 2026 6:00 PM 21.45 20.22 8.13
North Fri, Oct 9, 2026 5:57 PM 19.43 19.43 15.7, 15.8, 15.3 4.12
Paczy Fri, Oct 9, 2026 5:57 PM 19.23 19.23 15.6, 14.9, 14.3 3.5
SFL Culown Fri, Oct 9, 2026 5:57 PM 19.91 20.3 N/A, 15.4, 15 3.39
SFL Home Fri, Oct 9, 2026 5:57 PM 21.13 20.34 15.4 8.94
SFL Lorimer Fri, Oct 9, 2026 5:57 PM 19.52 20.16 15.2, 13.8 0
SFL Rajtrowski Fri, Oct 9, 2026 5:57 PM 20.3 19.85 15.9 12.43
SFL Zavitz Fri, Oct 9, 2026 5:57 PM 19.16 19.77 14.6, 15.5 5.17
Shaw Fri, Oct 9, 2026 5:57 PM 20.22 20.34 3.91
Suncrest Fri, Oct 9, 2026 5:57 PM 19.35 20.74 N/A, 15.1 7.31
Waterford Fri, Oct 9, 2026 5:57 PM 18.63 18.63 15.7, 15.8 5.97
Weslan Fri, Oct 9, 2026 5:57 PM 18.93 18.93 15.8, 15.9 9.24

Weather Forecast

Fetching weather…

Apple Minimum Temperatures

Silver tip Green tip ½ inch Green Tight Cluster First Pink Full Pink First Bloom Full Bloom Petal Fall
10% kill -9.4 -7.8 -5.0 -2.8 -2.2 -2.2 -2.2 -2.2 -2.2
90% kill -16.7 -12.2 -9.4 -6.1 -4.4 -3.9 -3.9 -3.9 -3.9

Critical Spring Temperatures in °C for Apples

Tart Cherry Minimum Temperatures

Swollen Bud Side Green Green Tip Tight Cluster Open Cluster First White First Bloom Full Bloom Petal Fall
10% kill -9.4 -4.4 -3.3 -3.3 -2.2 -2.2 -2.2 -2.2 -2.2
90% kill -17.7 -12.2 -5.5 -4.4 -4.4 -4.4 -4.4 -4.4 -4.4

Critical Spring Temperatures in °C for Tart Cherries

Wind Machines

  • Do not operate wind machines if wind speeds are much higher than 7 km/h as there is unlikely to be a strong temperature inversion or warmer air above the field anyway.
  • Do not operate wind machines if wind speeds are 13 km/h or higher, as this can damage their long, thin blades.
  • Never operate wind machines if wind speeds are 21 km/h or higher, as this can seriously damage them.

Overhead Irrigation

  • Must be started before the temperature reaches freezing, if running, start above 1 degree C.
  • Must stay on until temperatures return to above freezing
  • Wind can result in worse frost damage than if we had done nothing, if winds are likely to get above 20 km/hour through the freezing event we probably should not turn on the irrigation system.
  • If freezing event is past 12 hours we probably should not irrigate as the ponds may run out of water and ice buildup could cause extensive damage