Temperature and Humidity at St Ives.

Current and recent days temperature and humidity gauges and charts for St ives in Huntingdonshire & Cambridgeshire

 

Current Thermal/Temperature Measurements

Current Air Temperature

Current Air Temperature in St Ives, Huntingdonshire

Current Air Temperature in St Ives, Huntingdonshire

 

Rate of change of the Air Temperature

Rate of change of the Air Temperature in St Ives, Huntingdonshire

Rate of change of the Air Temperature in St Ives, Huntingdonshire

 

Current Dew Point Temperature

Current Dew Point Temperature in St Ives, Huntingdonshire

Current Dew Point Temperature in St Ives, Huntingdonshire

 

Current Relative Humidity

Current Relative Humidity in St Ives, Huntingdonshire

Current Relative Humidity in in St Ives, Huntingdonshire

 

Current Ground Temperature at 20cm

Current Ground Temperature at 20cm in St Ives, Huntingdonshire

Current Ground Temperature at 20cm in St Ives, Huntingdonshire

 

Air Temp & Dew Point

Chart of Air Temperature and Dew Point at St Ives in Huntingdonshire over the last 72 hours

Chart of Air Temperature and Dew Point at St Ives
in Huntingdonshire over the last 72 hours

 

Relative Humidity

Chart of Relative Humidity at St Ives in Huntingdonshire over the last 72 hours

Chart of Relative Humidity at St Ives
in Huntingdonshire over the last 72 hours

 

Detail graph of Air Temperature and Dew Point over last 12 hours

Detail graph of Air Temperature and Dew Point over last 12 hours

 

Graph of 20cm Ground/Soil Temperture over last 72 hours

Graph of 20cm Ground/Soil Temperture over last 72 hours

 

Heat - The engine of the Atmosphere

In the section called "Where does the wind come from" we described the effect heat from Solar Radiation has in generating some of the wind forces we experience. Heat however also has other effect on what we experience as weather.

Before we look in detail at some of the effects we should define what is being displayed on the instruments and graphs above.

 

Air Temperature

The heat energy of the air measured at 1.5 metres above ground level by a sensor protected from the effect of radiation from other sources; the sun, exhaust and ventilation ducts, etc. The protection is usually afforded by the installation within a Stevenson Screen located over short grass. This is to prevent the sensor from the effects of reflected heat from other surfaces such as concrete or tarmac.

Dew Point

The temperature of the air at a particular location at which saturation occurs and water vapour begins to condense forming Dew.

Dew is commonly observed on the leaves of plants in the early morning as shown in the picture on the right

Relative Humidity

Measured as a percent of moisture in the air, relative to the amount of moisture it can hold without precipitation at a given temperature. Humidity (Absolute humidity) is a measurement of the amount of water per unit volume of air.

Dew on the grass

Drops of dew on grass leaves early in the morning

Dew drop forming on grass leaves early in the morning

 

Soil Temperature

The temperature of the ground measured at a given soil depth, typically at 0 (Ground level), 10, 20 (This Station), and 30cm. Many biological processes, including seed germination, plant emergence, microbial activity, and soil respiration are dependent upon soil temperature.

The Atmosphere absorbs two kinds of energy, Kinetic; as a result of the revolution of the planet, and Heat in the form of radiation from the Sun. There two energies combine to create the dynamics of the atmosphere.

Never base important decisions on this or any weather information obtained from the Internet