Winter 2010-2011

Spring is in the air and Old Man Winter has passed. Winter in the Upper Texas Coast has been rather interesting. We had Arctic blasts in January and February. Than after the winter blasts, a warm February. Let’s see how Winter 2010-2011 was like in the rain and temperature department. Average is from 1895 to 2011.

Rainfall Total
7.56

This winter’s rainfall total is 3.15 inches below normal of the average of 10.71 inches. It has been a dry winter and February was very dry. Not surprisingly it was due to La Nina, which is drier than normal. I consider anything below the 25th percentile as unusually dry, which is the case for this past winter. Anything below 25th or above 75th percentile is unusual.

1895-2011 Winter Rain
Mean
10.71

Median
10.19

Standard Deviation
3.46

Percentile
5th
5.98

25th
8.33

50th
10.19

75th
12.70

95th
16.66

Temperature
54.1

This winter’s average temperature is 1 degree below normal of the average 55.1. This considered normal, since it is within the 25th to 75th percentile. Anything below 25th or above 75th percentile is unusual. This winter had more hard freezes than last winter, which was one of the coldest on record. The reason is that last winter (2009-2010) had more cooler temperatures, despite having less hard freeze than 2010-2011 Winter. Also, last winter was an El Nino, which is cooler and wetter.

1895-2011 Winter Temperature
Mean
55.1

Median
55.2

Standard Deviation
2.6

Percentile
5th
50.2

25th
53.6

50th
55.2

75th
56.5

95th
59.8

Here is a graph of winter temperature and rainfall from 1895 to 2011.

Data Source
Division Data Select

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