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Year 2011 二零一一年

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Yearly Summary 年度總計

Element 氣候元素 Monthly Anomaly during 2011
2011 年月距平
    1 2 3 4 5 6 7 8 9 10 11 12
Average Max Temp 平均最高溫度                      
Average Temp 平均溫度                      
Average Min Temp 平均最低溫度                      
Mean Relative Humidity 平均相對濕度                      
Mean Pressure 平均氣壓                      
Total Rainfall 總雨量                      
# TCs threatening HK1 襲港氣旋數量1
# days with TC signals 發出熱帶氣旋警告訊號日數
# named TCs forming2 命名氣旋2                      

January 2011 - 2011 年一月

HKO summary: Due to the frequent replenishments of the winter monsoon, the monthly mean temperature of 13.7 degrees for the first month of 2011 was 2.4 degrees below normal, making it the coldest January since 1977. There were 14 cold days (daily minimum temperature at 12 degrees or below) in the month, doubling the normal figure of 7 days. The temperature did not rise to 20 degrees or above for the month which only occurred once in 1918 for January on record. The month was also drier than usual with only 5.4 millimetres of rainfall, about 22 percent of the normal figure.

天文台每月天氣回顧: 受頻密的冬季季候風補充影響,二零一一年首月平均氣溫為13.7度,較正常低2.4度,是自一九七七年以來最寒冷的一月份。本月有14天出現寒冷天氣(最 低氣溫在12度或以下),是正常數值七天的兩倍。最高氣溫方面,本月沒有一天高於20度,以一月份來說,記錄上只有一九一八年出現過一次同樣情況。本月較 少雨,只共錄得5.4毫米雨量,是正常數值的百分之22左右。

Date of Issue 發佈日期 n/a n/a n/a
Element 氣候元素 Jan Average Observed Values hkson's Predictions Jams' Predictions David's Predictions
    一月平均 實測數據 hkson 預計 Jams 預計 David 預計
Average Max Temp 平均最高溫度 18.6 C

16.3 C (2.3 C)

n/a n/a n/a
Average Temp 平均溫度 16.1 C 16.8 C (2.4 C) n/a n/a n/a
Average Min Temp 平均最低溫度 14.1 C 11.6 C (2.5 C) n/a n/a n/a
Mean Relative Humidity 平均相對濕度 73 % 67 % (6 %) n/a n/a n/a
Mean Pressure 平均氣壓 1020.1 hPa  1021.5 hPa (1.4 hPa) n/a n/a n/a
Total Rainfall 總雨量 24.9 mm 5.4 mm (19.5 mm) n/a n/a n/a
# TCs threatening HK1 襲港氣旋數量1 n/a  0 n/a n/a n/a
# named TCs forming2 命名氣旋2 0.5 0 (0.5) n/a n/a n/a

1 - necessitate the issuance of TC warning signals 需要發出熱帶氣旋警告

2 - named by JMA 被日本氣象廳命名 (Average number from 1951 to 2008. 1951 至 2008 年平均)

Except "# named TCs forming", all normal averages and totals are based on the observations between year 1971 and 2000. 除 "命名氣旋" 外,所有平均/總計數據來自 1971 年至 2000 年間錄得的資料。

Forecasting agencies 預測機構 : Jams (PTCC), HKSON (HKWWSIC), David (HKWW)
The above forecasts are for reference only. 以上預測只供參考,敬請留意

Last Accessed 最近訪問日期: Mon Aug 19 2019 09:16:50 HKT
Last Modified 最近修訂日期: Tue Dec 24 2013

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