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A Note on the Data
Weatherwatch maps are based upon a variety of different data sources. Preliminary reports from the dense network of the National Climatic Data Center are used whenever available. When necessary, a much reduced set is used, consisting of selected National Weather Service stations, a few National Climatic Data Center Observers, and (for precipitation only) some volunteer data where important anomalies are suspected.
Please contact this Office before using any of these results for legal or economic purposes.
March
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TOP: Statewide temperatures for March 1999 averaged 3.42°F below the long-term average.
BOTTOM: Precipitation totals for March 1999 averaged statewide were below the long-term mean at 2.96 inches. |
April
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TOP: April 1999 temperatures averaged across the state were above the long-term mean by 1.61°F.
BOTTOM: April 1999 statewide total precipitation averaged slightly above the long-term mean at 3.66 inches. |
May
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TOP: The statewide temperature for May 1999 averaged 0.42°F below the long-term average.
BOTTOM: May 1999 precipitation averaged below the long-term mean at 3.30 inches.
1999, THROUGH MAY: Temperature departure +1.33°F; Precipitation 16.85 inches (98% of normal). |
Late Moisture Indices
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TOP: Palmer Drought Severity Index values for the week ending September 4, 1999 indicated seriously dry deep soil moisture conditions in northern and western portions of the state.
BOTTOM: Crop Moisture Index values for the same period were significantly low only in the southwestern corner of the state. |
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