2009年2月及2008-2009年冬季圣克劳德天气摘要
一向寒冷的二月结束自2000-2001年以来最寒冷的冬天
2009年2月及2008-2009年冬季圣云天气摘要
由于2009年2月圣. 云似乎又是一个远低于正常水平的月份. 然而，圣克劳德二月的平均气温是16度.3°F, 0.3°F above normal. 2月份统计数据较温和的原因是我们经历了“2月解冻” 2月5日至2月18日之间的温和期. 二月中旬的平均气温是17度.9°F, three degrees warmer than normal. 更重要的是，2月5日至18日的平均高点是32.1华氏度，14天中有7天气温高于冰点. 2月9日和10日全天气温都保持在零度以上，所以两国的气温都在下降 record warm low 2月10日的最高平均气温也被打破. 这与2009年1月的高点形成了鲜明对比, 1月31日，只有一处气温高于冰点. 在此期间也没有出现零度或更低的低点. In fact, 2月上半月(9日和10日)的一次降水均为降雨. 雨水和温暖的气温使积雪从2月初的1英尺下降到2月18日的5英寸.
2月剩下的时间里，寒冷的冬天还在继续. 2月1日至4日、19日至28日的平均气温为9℃.3°F (high 19.7°F, low -1.2°F), 比2月中旬还要低8.5度，甚至比1月最冷的时候还要低一点. We added 9 days with a low of at least 0°F 或更冷，使寒冷季节的总天数到2月底达到48天. 最冷的气温是2月4日，最低气温为零下20华氏度， 到目前为止，这个冬天的第12天出现了低潮. 这使得几年来最低气温在零下20华氏度以上的天数排在第11位 most since the winter of 1995-1996.
当我们接近天文春天的开始(6:44 CDT AM on March 20), meteorological winter (December 1-February 28; the three coldest months) ended up with the coldest statistics since 2000-2001. The average 2008-2009 temperature was 9.4华氏度，是圣路易斯市126个冬天中第24个最冷的. Cloud records. 这一数据使2008-2009年的冬天成为2000-2001年以来最冷的一年. 实际上，这比1995-1996年更为极端的冬天还要冷.9华氏度，28日)，这是圣迭戈最后一次零下40华氏度. Cloud records.
Will Spring Bring Relief?
我们能从持续的寒冷天气中得到缓解吗? Not so far in March. There have been 6 more days with a low of at least 0°F, running the cold season total to 54. There have only been 4 cold seasons自1986-1987年以来，至少有50天的最低气温为零或更低. What happens as we go on? 从以往的寒冷季节来看，我们将迎来一个寒冷或接近正常的春天. 在比2008-2009年更冷的23个冬天中, 12个气象春季(3月1日至5月31日)比正常气温低至少一度, 3 were warmer than normal, and 8 were within a degree of normal. On the other hand, 让我们比平时更冷的一个因素是持续的大雪覆盖. 我们已经连续98天积雪至少一英寸了. 然而，从3月13日到下周的温暖天气可能会融化几乎所有的 snow cover from Saint Cloud southward. 把积雪赶出去确实有助于潜在的变暖，因为积雪:1)将大量射入的阳光反射回太空, and 2) uses up energy to melt the snow cover. 不幸的是，这种热身的速度可能会使所有的 worst predictions of river flooding come true. Part of the problem is the deep snow cover 横跨红河、密西西比河上游和明尼苏达河上游河谷. Also, the frost depth 因为我们的冬天很冷，所以比平时深得多. And, 地区河流和湖泊上的冰比平时厚, so that raises the likelihood of ice jams.
The outlook for the Red River Valley 只要那些50岁和60岁的人远离该地区，到下周初都不会有问题. But, there is a 50-50 chance for record flooding 红河沿岸(比1997年和2001年更糟) .
On and Off Snowfall
2009年2月，圣. Cloud. The monthly snowfall was 8.5英寸，比正常高1英寸又1 / 4. 然而，没有可测量的降雪 first 17 days of February. Then, there were two significant snowstorms, 3.8 inches on February 20-21 and 4.1 inches on February 26. That last snowstorm 红河谷和明尼苏达州中北部降雪约一英尺, right where it was least needed.
For the cold season so far, St. Cloud has picked up 43.4 inches, 3.5 inches above normal. However, it has fallen sporadically. St. Cloud got 28.8 inches between Dec. 4 and January 14 (normal amount: 12.9 inches), then only 0.从1月15日到2月17日8英寸(正常:10英寸).4 inches), and then 12.从2月18日到3月10日5英寸(正常量:5英寸).3 inches). 初冬的大雪期包括23个.0 inches in the month of December, the 4th snowiest December in St. Cloud record.
The February total precipitation was 0.80英寸，比正常高四分之一英寸. 其中一半的降水在2月9日至10日以降雨的形式出现.
|
Temperatures (°F)
|
Feb 2009
|
Normal
|
|
| Average High Temperature (°F) |
25.9
|
25.7
|
|
| Average Low Temperature (°F) |
6.8
|
6.4
|
|
| Mean Temperature for February (°F) |
16.3
|
16.0
|
|
|
February Extremes
|
Temperature(°F)
|
Date
|
|
| Warmest High Temperature for Feb 2009 (°F) |
43
|
Feb. 9th
|
|
| Coldest High Temperature for Feb 2009 (°F) |
4
|
Feb. 3rd
|
|
| Warmest Low Temperature for Feb 2009 (°F) |
33 (set record, see below)
|
Feb. 10th
|
|
| Coldest Low Temperature for Feb 2009 (°F) |
-20
|
Feb. 4th
|
|
|
Record Temperatures in February 2009
|
Temperature(°F)
|
Date
|
Old Record
|
|
Daily Record Warm Average
|
38°F
|
February 10th
|
37°F set in 1999
|
|
Daily Record Warm Low
|
33°F
|
February 10th
|
32°F set in 1999
|
|
Temperature Thresholds
|
Number of Days
|
Normal
|
|
| February 2009 Days with High Temperatures <= 32°F |
19
|
||
| February 2009 Days with High Temperatures <= 0°F |
0
|
0.8
|
|
| February 2009 Days with High Temperatures <= -10°F |
0
|
0.5
|
|
| February 2009 Days with Low Temperatures <= 32°F |
27
|
27.8
|
|
| February 2009 Days with Low Temperatures <= 0°F |
9
|
12.2
|
|
| February 2009 Days with Low Temperatures <= -20°F |
1
|
2.9
|
|
| February 2009 Days with Low Temperatures <= -30°F |
0
|
0.4
|
|
|
Liquid Equivalent Precipitation (in)
|
Feb 2009
|
Normal
|
|
|
February 2009 Saint Cloud Airport Melted Precipitation (in)
|
0.80
|
0.59
|
|
|
February Extremes
|
Precipitation (in)
|
Date
|
|
|
Most Daily Precipitation in February 2009
|
0.21 inch
|
Feb. 9th
|
|
|
Record Precipitation in February 2009
|
Precipitation (in)
|
Date
|
Old Record
|
|
No records set
|
|||
|
Precipitation Thresholds
|
Number of Days
|
Normal
|
|
| February 2009 Days with Measurable (>= 0.01 inch) Precipitation |
6
|
5.7
|
|
| February 2009 Days with >= 0.10 inch Precipitation |
4
|
2.1
|
|
| February 2009 Days with >= 0.25 inch Precipitation |
0
|
0.8
|
|
| February 2009 Days with >= 0.50 inch Precipitation |
0
|
0.3
|
|
| February 2009 Days with >= 1.00 inch Precipitation |
0
|
0.0
|
|
|
Snowfall (in)
|
Feb. 2009
|
Normal
|
|
|
February 2009 Saint Cloud Airport Snowfall (in)
|
8.5
|
7.2
|
|
|
Snowfall Thresholds
|
Number of Days
|
Normal
|
|
| February 2009 Days with Measurable (>= 0.1 inch) Snowfall |
4
|
8.7
|
|
| February 2009 Days with >= 1.0 inch Snowfall |
2
|
3.7
|
|
| February 2009 Days with >= 2.0 inch Snowfall |
2
|
1.7
|
|
| February 2009 Days with >= 5.0 inch Snowfall |
0
|
0.3
|
|
|
February Extremes
|
Snowfall (in)
|
Date
|
|
|
Most Daily Snowfall (in) in February 2009
|
4.1
|
February 26th
|
|
|
Record Snowfall (in) in February 2009
|
Snowfall (in)
|
Date
|
Old Record
|
|
No Snowfall Records Set
|
|||
Winter (Dec 1-Feb 28) 2008-2009 Statistics
|
Temperatures (°F)
|
Winter 2008-2009
|
Normal
|
| Average High Temperature (°F) |
20.3
|
22.5
|
| Average Low Temperature (°F) |
-1.5
|
3.6
|
| Mean Temperature for Winter (°F) |
9.4**
|
13.2
|
|
**26th coldest winter in St. Cloud Records Coldest winter since 2000-2001: 8.7°F |
||
|
Temperature Thresholds
|
Number of Days
|
Normal
|
| Cold Season 2008-2009 (through Mar. 13) Days with High Temperatures <= 32°F |
90
|
|
|
Cold Season 2008-2009 |
5
|
4.3
|
|
Cold Season 2008-2009 None since January 29, 2004 |
0
|
0.6
|
|
Cold Season 2008-2009 (through Mar. 13) |
133
|
170.4
|
|
Cold Season 2008-2009 (through Mar. 13) 自1986-1987年以来的第四次寒季，至少持续50天 |
54
|
42.7
|
|
Cold Season 2008-2009 |
12
|
5.4
|
|
Cold Season 2008-2009 First since January 30, 2004; -36 F coldest day since February 2, 1996 (-40 F) |
1
|
0.6
|
|
Liquid Equivalent Precipitation (in)
|
Winter 2008-2009
|
Normal
|
|
圣克劳德机场冬季融化降水(中)
|
2.92
|
2.18
|
|
Precipitation Thresholds
|
Number of Days
|
Normal
|
| Winter 2008-2009 Days with Measurable (>= 0.01 inch) Precipitation |
22
|
19.4
|
| Winter 2008-2009 Days with >= 0.10 inch Precipitation |
10
|
6.5
|
| Winter 2008-2009 Days with >= 0.25 inch Precipitation |
4
|
2.3
|
| Winter 2008-2009 Days with >= 0.50 inch Precipitation |
0
|
0.6
|
| Winter 2008-2009 Days with >= 1.00 inch Precipitation |
0
|
0.0
|
|
Snowfall (in)
|
Winter 2008-2009
|
Normal
|
|
Winter 2008-2009 Snowfall (in)
|
38.1
|
26.3
|
|
2008年12月4日- 2009年1月14日降雪(中)
|
28.8
|
12.9
|
| 2009年1月14日- 2009年2月17日降雪(中) |
0.8
|
10.4
|
| 2008年2月18日- 2009年3月10日降雪(中) |
12.5
|
5.3
|
|
2008-2009寒冷季节的降雪量(中)(2008年10月1日-2009年3月13日)
|
43.4
|
39.7
|
Saint Cloud Cold Season Snowfall 2004-2009
| Jul | Aug | Sept | Oct | Nov | Dec | Jan | Feb | Mar | April | May | June | Total | |
|
2004-2005
|
0.0
|
0.0
|
0.0
|
0.2
|
2.0
|
15.0 |
8.9
|
1.0
|
0.1
|
0.0
|
27.2
|
||
|
2005-2006
|
0.0
|
0.0
|
0.0
|
4.6
|
15.1 |
3.8
|
3.7
|
6.2
|
0.0
|
0.0
|
0.0
|
33.4
|
|
|
2006-2007
|
0.0
|
0.0
|
0.0
|
0.3
|
2.4
|
2.0
|
13.8 |
8.2
|
5.1
|
0.0
|
0.0
|
31.8
|
|
|
2007-2008
|
0.0
|
0.0
|
0.0
|
0.0
|
0.5
|
13.9
|
1.8
|
7.3
|
17.8
|
10.9
|
0.0
|
0.0
|
52.2
|
|
2008-2009
|
0.0
|
0.0
|
0.0
|
1.3
|
23.0 |
6.6
|
8.5
|
39.4
|
|||||
|
30-Year-Normals
(1971-2000) |
0.0
|
0.0
|
0.0
|
0.6
|
8.9
|
7.8
|
11.5
|
6.7
|
8.5
|
2.6
|
0.1
|
0.0
|
45.8
|
|
Historic Averages
(1899-2005) |
0.0
|
0.0
|
0.0
|
0.7
|
6.2
|
7.2
|
9.1
|
7.2
|
8.3
|
2.6
|
0.1
|
0.0
|
41.6
|
|
February 23-26 Storm
|
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