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State of the Climate
Global Analysis
June 2001

National Oceanic and Atmospheric Administration

National Climatic Data Center

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Global Analysis Report

Global Highlights:

  • Global average land and sea surface temperature was the second warmest on record for June
  • Lower tropospheric and stratospheric temperatures were slightly cooler than average during the month
  • Above average precipitation was most notable across the Gulf Coast of the U.S., northern Brazil, northern India and southeast Asia
  

Contents of this Section:
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Top of Page Introduction

Anomalous warmth (based on a 1992-2001 base period as shown in the adjacent blended product of satellite and in-situ data) was dominant across much of Asia and the United States in June. Strong upper level ridges of high pressure (depicted by positive 500 millibar height anomalies) were situated across Alaska, eastern Canada, the central Former Soviet Union (FSU) and northwest Africa. Temperature anomalies calculated from in-situ station data using a 1961-1990 base period also show these warmer than average temperatures, with cooler than average temperatures denoted across much of Europe, northern India and the U.S. Pacific Northwest. Click Here for the Global Blended Temperature in June 2001
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Top of Page Temperature

  • The global land and ocean temperature ranked as the second warmest June in 2001 and was 0.51°C (0.92°F) above the long-term average using an 1880-2000 base period (0.41°C / 0.74°F above the 1961-1990 mean)
  • Temperatures averaged across the Northern Hemisphere ranked second warmest, or 0.64°C (1.15°F) above the June average
  • Land areas of the Southern Hemisphere were slightly cooler than average, a departure of -0.14°C (-0.25°F)
 Click Here for the Global Temp Anomalies in June 2001
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Click Here for the June Extratropical Land Temperatures
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  • The warmest June on record was observed across extratropical areas of the Northern Hemisphere (90°N-20°N), as the combined land and ocean temperature was 0.84°C (1.51°F) above average
  • Using a 1961-1990 base period, the combined land and ocean temperature in the extratropics was 0.77°C (1.39°F) above the 30-year average
  • Temperatures averaged over land areas were the warmest ever for June using an 1880-2000 base period, or 1.15°C (2.07°F) higher than the mean
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Top of Page Precipitation

  • Heavier than average monsoon rains began across northern India, with above average precipitation extending through southeast Asia and parts of eastern China
  • Other areas that were wetter than average included the U.S. Gulf Coast and northern Brazil, with monthly rainfall surpluses locally exceeding 200 mm (7.87 inches)
  • Unusually dry weather was found across the U.S. southern Plains, much of the Mediterranean, southern India and southwest Australia
 Click Here for the Global Precip Anomalies in June 2001 larger image

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Top of Page Microwave Sounding Unit Data

Click Here for the Lower Tropospheric Temperature time series
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  • Northern Hemisphere temperatures in the lower troposphere were slightly warmer than average (0.05°C / 0.09°C), while Southern Hemisphere temperatures were a bit cooler than the 1979-1998 average (-0.16°C / -0.29°F)
Click Here for the Lower Stratospheric Temperature time series
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  • In the lower stratosphere, June was -0.36°C (-0.65°F) cooler than average
  • This was the 9th consecutive June with below average temperatures in the lower stratosphere

Lower tropospheric and lower stratospheric temperature data are collected by NOAA's TIROS-N polar-orbiting satellites and adjusted for time-dependent biases by NASA and the Global Hydrology and Climate Center at the University of Alabama in Huntsville.

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For additional details on precipitation and temperatures in June see the Global Regional page .

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References:

Peterson, T.C. and R.S. Vose, 1997: An Overview of the Global Historical Climatology Network Database. Bull. Amer. Meteorol. Soc., 78, 2837-2849.

Questions?

For questions on technical or scientific content of this report, please contact:

Ahira Sánchez-Lugo:
Ahira.Sanchez-Lugo@noaa.gov

For general climate monitoring questions, please contact:

CMB.Contact@noaa.gov

For climate data orders, please contact the National Climatic Data Center's Climate Services and Monitoring Division:

NCDC.Orders@noaa.gov

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