StatsClimat / China
CLIMATE REPORT
Climate of Yibin, China
Yibin, China: It has a Temperate, dry winter, hot summer Köppen climate classification, an annual mean temperature of 18.2°C, and annual precipitation of 1,153 mm, with a temperature trend of +0.18°C per decade.
Monthly climate profile
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Complete statistical analysis of historical climate data with detailed comparison
Climate Classification: Cwa: Temperate, dry winter, hot summer
Köppen–Geiger classification system
GENERAL INFORMATION
Geographic Location
Analysis Details
| Location | Yibin (Longitude: 104.63994, Latitude: 28.7593) |
| Analysis Period | 1970 - 2024 |
| Climate Normals | 1991-2020 (WMO) |
| Reference Period | 1991-2020 (WMO) |
| Generation Date | 2025-10-22 at 02:40 |
| Data Source | WorldClim/CRU TS v4.09 |
Analysis Context
This comprehensive climate analysis of Yibin covers a period of 54 years (1970-2024), allowing identification of long-term climate trends and seasonal variations characteristic of this region. The analysis follows World Meteorological Organization (WMO) standards for climate normals and reference periods.
CLIMATE STATISTICS 1970-2024
Thermal Parameters
| Annual average temperature | 18.2 °C |
| Average minimum temperature | 14.9 °C |
| Average maximum temperature | 21.4 °C |
| Annual thermal amplitude | 19.2 °C |
| Warmest month | Jul (27.2°C) |
| Coldest month | Jan (8.0°C) |
Precipitation Parameters
| Average annual precipitation | 1164 mm |
| Average monthly precipitation | 97.0 mm |
| Wettest month | Jul (225.0 mm) |
| Driest month | Jan (18.2 mm) |
| Temperature trend | +0.18°C per decade |
| Precipitation trend | +5.2 mm per decade |
Temperature Trend
Precipitation Trend
TEMPERATURE TREND SIGNIFICANCE
Trend: +0.185°C/decade
R²: 0.444
Period: 1970-2024
PRECIPITATION TREND SIGNIFICANCE
Trend: +5.2 mm/decade
R²: 0.005
Period: 1970-2024
Statistical Interpretation
The data reveal a climate characterized by an annual average temperature of 18.2°C with a thermal amplitude of 19.2°C between the warmest and coldest months. The precipitation regime shows an annual average of 1164 mm, with marked seasonal variations between Jul (225.0 mm) and Jan (18.2 mm). The temperature trend shows significant warming at a rate of +0.18°C per decade.
RECENT ANOMALY DETECTION
COMPARISON METHODOLOGY
To identify recent climate anomalies, the recent period (2001-2024) is compared with the standard reference period (1991-2020). This approach, following WMO guidelines, highlights deviations from historical norms and helps detect early signals of climate change.
REFERENCE PERIOD
Standard WMO climate reference
RECENT PERIOD
Current climate trend analysis
Comparative Table of Climate Parameters
| Parameter | Reference Period (1991-2020) | Recent Period (2001-2024) | Anomaly | Change (%) |
|---|---|---|---|---|
| Temperature Min (°C) | 14.99 | 15.23 | +0.24 | +1.6% |
| Temperature Max (°C) | 21.50 | 21.78 | +0.29 | +1.3% |
| Average Temperature (°C) | 18.24 | 18.51 | +0.27 | +1.5% |
| Precipitation (mm) | 1152.5 | 1163.3 | +10.8 | +0.9% |
Average Temperature Comparison
Precipitation Comparison
Temperature Anomalies
Temporal Evolution of Temperature
Results Analysis
The comparison between the two periods reveals the following climate trends:
THERMAL EVOLUTION
The average temperature increased by +0.27°C (+1.5%) between 1991-2020 and 2001-2024.
PRECIPITATION TREND
Annual precipitation increased by +10.8 mm (+0.9%).
GENERALIZED WARMING
Minimum temperatures increased by +0.24°C and maximum temperatures by +0.29°C, indicating generalized warming affecting the entire thermal regime.
These results confirm the global warming trend observed worldwide, with potential implications for local ecosystems and human activities. The analysis follows WMO standards for climate change detection.
CLIMATE CHARACTERISTICS 1991-2020
Monthly Climate Averages (1991-2020 Normals)
| Month | Tmin (°C) | Tmax (°C) | Tmean (°C) | Precip (mm) |
|---|---|---|---|---|
| Jan | 5.7 | 10.3 | 8.0 | 18.2 |
| Feb | 7.2 | 12.8 | 10.0 | 21.2 |
| Mar | 10.8 | 17.6 | 14.2 | 32.2 |
| Apr | 15.2 | 23.0 | 19.1 | 66.5 |
| May | 18.7 | 26.7 | 22.7 | 125.5 |
| Jun | 21.0 | 28.6 | 24.8 | 179.9 |
| Jul | 23.4 | 31.1 | 27.2 | 225.0 |
| Aug | 23.1 | 31.2 | 27.2 | 212.2 |
| Sep | 19.9 | 26.3 | 23.1 | 143.0 |
| Oct | 16.0 | 21.2 | 18.6 | 81.4 |
| Nov | 11.4 | 16.8 | 14.1 | 39.4 |
| Dec | 7.1 | 11.6 | 9.3 | 19.3 |
Seasonal Statistics
| Season | Avg Temp (°C) | Total Precip (mm) | Avg Precip (mm) |
|---|---|---|---|
| Winter | 9.1 | 3234 | 19.6 |
| Spring | 18.7 | 12329 | 74.7 |
| Summer | 26.4 | 33940 | 205.7 |
| Autumn | 18.6 | 14507 | 87.9 |
Monthly Temperature Boxplot
Monthly Precipitation Boxplot
Seasonal Characteristics Analysis
The climate of Yibin shows marked seasonality with significant differences between seasons. Summer is characterized by average temperatures of 26.4°C, while winter records averages of 9.1°C. Precipitation distribution shows summer concentration, with a total of 33940 mm in summer compared to 3234 mm in winter.
CONCLUSION AND RECOMMENDATIONS
CLIMATE REPORT SUMMARY - YIBIN
This report presents a comprehensive analysis of climate data from Yibin over the period 1970-2024, following international climatological standards (WMO, IPCC).
1. MAIN CLIMATE CHARACTERISTICS:
- Climate Type: Cwa: Temperate, dry winter, hot summer (Köppen-Geiger classification)
- Annual average temperature: 18.2°C
- Average annual precipitation: 1164 mm
- Thermal amplitude: 19.2°C
- Seasonal regime: Marked with significant differences between seasons
2. OBSERVED TRENDS (1970-2024):
- Warming trend: +0.18°C per decade (R² = 0.444)
- Precipitation evolution: +5.2 mm per decade (R² = 0.005)
- Statistical significance: High for temperature trends
3. PERIOD COMPARISON (1991-2020 vs 2001-2024):
- Temperature increase: +0.27°C (+1.5%)
- Increase in precipitation: +10.8 mm (+0.9%)
- More pronounced warming of minimum temperatures: +0.24°C
- Consistent with global climate change patterns
RECOMMENDATIONS:
STANDARDS COMPLIANCE
This report complies with World Meteorological Organization (WMO) standards for climate normals (1991-2020) and reference periods. Methodology follows IPCC guidelines for climate trend analysis and anomaly detection.
This report was automatically generated on 2025-10-22 at 02:40 from WorldClim/CRU TS data via GeoServer. Conforms to WMO/IPCC climatological standards.
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Data and interpretation
This report uses long-term climate data to describe average conditions and observed trends. It represents a climate estimate for the geographic location, rather than a local weather forecast or a direct replacement for station observations.