Oakes Irrigation Research Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2189, FAX: (701) 742-2700, email: rgreenla@ndsuext.nodak.edu

WEATHER AND IRRIGATION 2002

Table 1. Precipitation and temperature

Table 2. Growing degree units

Table 3. Dates of last and first frosts

Table 4. Irrigation water applied, 2002

          The winter of 2001 - 2002 was mild with little snow cover. Spring tillage and planting times were about average. The last frost in the spring was on May 24, three weeks later than average. Early summer temperatures were cool and damp. Hot humid weather followed the cooler temperature for most of the summer. The maximum temperature surpassed 90°F (32°C) 11 times. The highest temperature was 101°F (38°C) on June 29. Precipitation was above average in June and July, below average in April and May, and about average in August, September and October. Total annual precipitation was above average. Temperatures were below average in April, May, August, and October and were above average in June, July, and September. The first frost was on September 26 with a hard frost on October 2. The first frost and the first hard frost were about 3 days earlier than the ten year average. Some crops did not mature before frost. Growing degree units in 2002 were above average.

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Table 1. Precipitation and temperature at the Oakes Irrigation Research Site.

The 25-year averages are not available for April and October.

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Table 2. Growing degree units¹ at the Oakes Irrigation Research Site.

¹Growing degree units = (Temp_max + Temp_min)/2 - 50. If Temp_max is greater than 86, then

 Temp_max = 86. If Temp_min is less than 50, then Temp_min = 50. Temperature is in degrees F.

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Table 3. Dates of last and first frosts.

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Table 4. Irrigation water applied, 2002.

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Go to Oakes Irrigation Research Site 2002 annual report

Go to Oakes Irrigation Research Site home page