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, Jul 10, 2026 1:12 PM 31.8 31.48 N/A 2.83
Goode Farm Fri, Jul 10, 2026 1:12 PM 30.16 34.12 3.09
North Fri, Jul 10, 2026 1:09 PM 30.1 30.1 26.1, 26.8, 27.1 1.91
Paczy Fri, Jul 10, 2026 1:09 PM 31 31 26.6, 27, 27.7 3.19
SFL Culown Fri, Jul 10, 2026 1:12 PM 33.48 33.8 27.2, 27.8, 28.6 2.03
SFL Home Fri, Jul 10, 2026 1:12 PM 34.31 33.19 26.2 2.39
SFL Lorimer Fri, Jul 10, 2026 1:12 PM 36.04 34.68 28.5, 31.4 1.34
SFL Rajtrowski Fri, Jul 10, 2026 1:12 PM 31.6 33.12 26.9 0.94
SFL Zavitz Fri, Jul 10, 2026 1:12 PM 33.63 32.52 25.8, 25.9 0
Shaw Fri, Jul 10, 2026 1:09 PM 30.91 30.91 0.46
Suncrest Fri, Jul 10, 2026 1:12 PM 32 31.94 N/A, 27 3.38
Waterford Fri, Jul 10, 2026 1:12 PM 31.11 31.11 27.8, 26.9 1.57
Weslan Fri, Jul 10, 2026 1:12 PM 28.99 28.99 28.2, 25.1 5.94

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